The SI unit of electric current is...? Mcqs

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The SI unit of electric current is...?

(A) Coloumb
(B) Ampere

(C) Volt
(D) Watt

✅ Correct Answer: Ampere

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Source: This question is taken from the Everyday Science

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In the covalent bonding, electron of two atoms...?

(A) Share with each other
(B) Transfer from one atom to another

(C) Attract the ions and delocalized electrons
(D) None of these

✅ Correct Answer: Share with each other

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Source: This question is taken from the Everyday Science

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In an Electric circuit when Electrons move from low to high potential they will _______...?

(A) Gain Energy
(B) Lose their identity

(C) Lose Energy
(D) Gain Potential

✅ Correct Answer: Lose Energy

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Source: This question is taken from the Everyday Science

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Which of the following are not deflected by electric and magnetic fields ...?

(A) Alpha rays
(B) Beta rays

(C) Gamma rays
(D) None of these

✅ Correct Answer: Gamma rays

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Source: This question is taken from the Everyday Science

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Which instrument is used to measure the power of electric circuit ...?

(A) Wavemeter
(B) Viscometer

(C) Wattmeter
(D) None of these

✅ Correct Answer: Wattmeter

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Source: This question is taken from the Everyday Science

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Heating element of an electric heater is made up of___________...?

(A) Tungsten
(B) Graphite

(C) Chromium
(D) Nichrome

✅ Correct Answer: Nichrome

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The materials through which electricity cannot pass are called...?

(A) Conductors
(B) Insulators

(C) Semiconductors
(D) None

✅ Correct Answer: Insulators

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Source: This question is taken from the Everyday Science

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Electron has a much shorter wavelength than visible light, and this allows electron microscopes to produce _____ images....?

(A) Lower-resolution
(B) Higher-magnification

(C) Equal-resolution
(D) Higher-resolution

✅ Correct Answer: Higher-resolution

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Which scientist established that the various form of energy mechanical, electrical and heat are basically the same and can be changed from one form into another...?

(A) John Dalton
(B) William Thomson

(C) Albert Einstein
(D) James Prescott Joule

✅ Correct Answer: James Prescott Joule

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______ is the “Work done in moving a unit charge between two points in an electric circuit”...?

(A) Potential difference
(B) Current

(C) Power
(D) Resistence

✅ Correct Answer: Potential difference

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Two fluorine atoms share one electron each in their outermost shell to achieve electronic configuration of ______...?

(A) Xe
(B) Ar

(C) Kr
(D) Ne

✅ Correct Answer: Ne

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Source: This question is taken from the Everyday Science

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Most gases conduct electricity at:...?

(A) Normal pressure
(B) Very low pressure

(C) Very high pressure
(D) None of these

✅ Correct Answer: Very low pressure

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Source: This question is taken from the Everyday Science

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An atom is neutral but when an atom or molecule that carries net electric due to gain or loss of an electron is called an...?

(A) Ion
(B) Molecule

(C) Anion
(D) Cation

✅ Correct Answer: Ion

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The scientist who first sent electromagnetic waves to distant places is...?

(A) James Clerk Maxwell
(B) Heinrich Hertz

(C) Thomas Alva Edison
(D) John Logie Baird

✅ Correct Answer: Thomas Alva Edison

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A device that opposes the flow of electrons in electronic circuits is called...?

(A) Transformer
(B) Diode

(C) Transistor
(D) Resistor

✅ Correct Answer: Resistor

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Source: This question is taken from the Everyday Science

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Tendency of atoms to acquire eight electrons in their valence shell is ______...?

(A) Octet rule
(B) Duplet rule

(C) Triplet rule
(D) None of above

✅ Correct Answer: Octet rule

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Which is least Conductor of Electricity among the following...?

(A) Wood
(B) Copper

(C) Iron
(D) Water

✅ Correct Answer: Wood

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Which one of the following non-metals is not a poor conductor of electricity...?

(A) Sulphur
(B) Selenium

(C) Bromine
(D) Phosphorus

✅ Correct Answer: Selenium

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Which metal is pure conductor of electricity...?

(A) Copper
(B) Gold

(C) Silver
(D) lead

✅ Correct Answer: Silver

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Instrument that measure the electric force ________...?

(A) Hygrometer
(B) Hydrometer

(C) Ammeter
(D) Voltmeter

✅ Correct Answer: Ammeter

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Source: This question is taken from the Everyday Science

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The electric field can be detect ______...?

(A) Photon
(B) Neutron

(C) Proton
(D) Electron

✅ Correct Answer: Electron

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The property of a body to oppose the flow of electric charge through it is called electric _______...?

(A) Capacitance
(B) Resistance

(C) Potential
(D) Conductance

✅ Correct Answer: Resistance

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A device which converts chemical energy into electrical energy is called __________...?

(A) motor
(B) generator

(C) moving-coil meter
(D) battery

✅ Correct Answer: battery

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Who discovered the law of attraction and repulsion in electric charges...?

(A) Newton
(B) Gullelio

(C) Coulumb
(D) Einstein

✅ Correct Answer: Coulumb

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The type of coordination through electrochemical signals is _______...?

(A) Nervous
(B) Chemical

(C) Mechanical
(D) All of these

✅ Correct Answer: Nervous

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According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in_________...?

(A) 2 hours
(B) 5 hours

(C) 8 hours
(D) 10 hours

✅ Correct Answer: 10 hours

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In an electric circuit an ammeter is always connected in ______...?

(A) Series
(B) Parallel

(C) Mixed
(D) None

✅ Correct Answer: Series

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Metals are good conductors of electricity because they have free _____...?

(A) Electrons
(B) Protons

(C) Neutrons
(D) Photons

✅ Correct Answer: Electrons

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The electricity from a cell is called...?

(A) Direct Current (DC)
(B) Alternating Current (AC)

(C) Electric Potential (EP)
(D) Electric Resistance (ER)

✅ Correct Answer: Direct Current (DC)

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Which of the following performs its function by converting electrical energy into motion...?

(A) An electric motor
(B) An electric bulb

(C) An electric iron
(D) None

✅ Correct Answer: An electric motor

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A bird sitting on a high tension electric wire does not get electrocuted because:...?

(A) Sit has high resistance
(B) the body is earthed

(C) it does not form a closed path for the flow of current
(D) its feet are good insulators

✅ Correct Answer: it does not form a closed path for the flow of current

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The direction of electric force and electric field intensity is ______...?

(A) Parallel to each other
(B) Perpendicular to each other

(C) Opposite to each other
(D) In any direction

✅ Correct Answer: Parallel to each other

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Which of the following is the purpose of connecting a battery in an electric circuit...?

(A) To maintain resistance across the conductor
(B) To vary resistance across the conductors

(C) To maintain constant potential difference across the conductor
(D) To maintain varying potential difference across the conductor

✅ Correct Answer: To maintain constant potential difference across the conductor

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The antiparticle of an electronic is _______...?

(A) Positron
(B) Proton

(C) Alpha particular
(D) None of these

✅ Correct Answer: Positron

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If the electrostatic force between two electrons is F Newton, then the electrostatic force between two protons at the same distance is _____...?

(A) F
(B) 0N

(C) 2F
(D) 2/3 F

✅ Correct Answer: F

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Source: This question is taken from the Everyday Science

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The unit of home electricity energy consumption is ...?

(A) Watt hour
(B) Joule hour

(C) Killowatt hour
(D) Kilo joule hour

✅ Correct Answer: Killowatt hour

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Source: This question is taken from the Everyday Science

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The gas usually filled in the electric bulb is___________...?

(A) Nitrogen
(B) Hydrogen

(C) Carbon dioxide
(D) Oxygen

✅ Correct Answer: Nitrogen

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Source: This question is taken from the Everyday Science

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The type of radiation that travels in a straight line across an electric field is a/an...?

(A) Proton
(B) Electron

(C) α-particle
(D) γ-particle

✅ Correct Answer: γ-particle

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Source: This question is taken from the Everyday Science

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A device that converts mechanical energy into electric energy is called_______...?

(A) Motor.
(B) Transformer.

(C) Coil.
(D) Generator.

✅ Correct Answer: Generator.

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Source: This question is taken from the Everyday Science

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Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________...?

(A) ionic substances
(B) metallic substances

(C) molecular solids
(D) covalent network solids

✅ Correct Answer: metallic substances

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Source: This question is taken from the Everyday Science

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A object that does not produce light but it reflects light that comes from luminous object is called...?

(A) Luminous
(B) Non-luminous

(C) Reflective
(D) Illuminated

✅ Correct Answer: Non-luminous

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Source: This question is taken from the Everyday Science

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Units of electricity consumed by 2500 watt air-conditioner in one hour are_________...?

(A) 25 units
(B) 2.25 units

(C) 2.5 units
(D) 0.25 units

✅ Correct Answer: 2.5 units

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Source: This question is taken from the Everyday Science

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Which of the following is good conductor of heat but bad conduct of electricity...?

(A) Aluminium
(B) Titanium

(C) Abestos
(D) Mica

✅ Correct Answer: Mica

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Source: This question is taken from the Everyday Science

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In the electricity meter the digit to the extreme right is___________...?

(A) 1/5th of the unit
(B) 1/100 of the unit

(C) 1/10th of the unit
(D) 1/1000th of the unit

✅ Correct Answer: 1/10th of the unit

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Source: This question is taken from the Everyday Science

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What do you call the positive electrode of an electric cell...?

(A) Diode
(B) Anode

(C) Grid
(D) Cathode

✅ Correct Answer: Anode

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Source: This question is taken from the Everyday Science

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Which part of a bicycle dynamo spins to generate electricity...?

(A) Magnet
(B) Gear

(C) Axle
(D) Coils

✅ Correct Answer: Magnet

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Source: This question is taken from the Everyday Science

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If we reverse the direction of electric current, then the direction of the magnetic field will be...?

(A) Reversed
(B) Remain same

(C) Become tangent
(D) Become normal

✅ Correct Answer: Reversed

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Source: This question is taken from the Everyday Science

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According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in____________...?

(A) 1 hours
(B) 5 hours

(C) 10 hours
(D) 15 hours

✅ Correct Answer: 10 hours

Comments

Source: This question is taken from the Everyday Science

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