Which part of a D.C motor reverses the direction of current through the coil every half-cycle...? Mcqs

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Which part of a D.C motor reverses the direction of current through the coil every half-cycle...?

(A) The armature
(B) The commutator

(C) The brushes
(D) The slip rings

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Sound waves travel in solvents in the form of _____...?

(A) Transverse Waves
(B) Longitudinal Waves

(C) Electromagnetic Waves
(D) Mechanical Waves

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Law of conservation of momentum defines that the total momentum of a system of two bodies before and after collision ______...?

(A) Remains constant
(B) Retains more momentum

(C) Losses some momentum
(D) None of the above is true

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The frame work which gives shape to any structure called...?

(A) Architecture
(B) Bone

(C) Cartilage
(D) Skeleton

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A piece of matter in pure form is termed as ______...?

(A) Redical
(B) Mixture

(C) Compound
(D) Substance

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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

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The planets visible to us without using a telescope are __________...?

(A) 3
(B) 4

(C) 5
(D) 6

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The circuit that provides two or more paths for the current is called...?

(A) Series Circuit
(B) Short Circuit

(C) Parallel Circuit
(D) Open Circuit

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A substance which produces hydroxyl ion (OH)- in the aqueous solution is called...?

(A) Oxidizing agent
(B) Reducing agent

(C) Base
(D) Acid

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The eggs of the following fish is floating...?

(A) Rohu
(B) Trout

(C) Gulfam
(D) Catla

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