What is the magnetic field at any point in the open space inside the toroid...? Mcqs

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What is the magnetic field at any point in the open space inside the toroid...?

(A) zero
(B) one

(C) Depends on the current in the turns
(D) Depends on number of turns

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All of the following statements are incorrect except:...?

(A) Precision and accuracy should go side by side in a scientific work
(B) Scientific work must be precise, accuracy is not essential

(C) Scientific work must be accurate, precision is not essential
(D) Calculations must be made before any experiment

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What happens when oil is burnt...?

(A) Carbon dioxide and energy will be released
(B) Carbon monoxide and water will be released

(C) Oxygen and carbon will be released
(D) Nitrogen and hydrogen will be released

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Which best describes the frog...?

(A) Consumer
(B) Producer

(C) Decomposer
(D) None

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_____ is the term used for breeding of fish specially constructed zonks and ponds....?

(A) Horticulture
(B) Agriculture

(C) Pisciculture
(D) Vitirsilture

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Wireless transmission can be done via _____________...?

(A) A Infrared waves
(B) Radio waves

(C) Microwaves
(D) All of these

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Polyethene is ______...?

(A) Oil
(B) Paper

(C) Plastic
(D) Wood

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Dr. James Watson discovered the structure of DNA in __________...?

(A) 1953
(B) 1955

(C) 1957
(D) 1857

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What happens when you run a plastic comb through your dry and non-oily hair and then hold the comb above bits of paper...?

(A) Bits of paper get instantly attracted to the comb
(B) Bits of paper remain unaffected

(C) Bits of paper start to repel the comb
(D) Bits of paper start to stick to your hair

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Approximately how many Galaxies are there ...?

(A) 10 Billion Galaxies
(B) 100 Billion Galaxies

(C) 1000 Billion Galaxies
(D) 10000 Billion Galaxies

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