Small current in a circuit is detected by

Galvanometer

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Fleming's left hand rule

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Voltmeter

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Solenoid

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Solution

The correct option is A
Galvanometer

Galvanometer is used to detect presence of small current in a circuit.

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Similar questions

What is the difference between Fleming left and right hand rule ?

(A) Choose the correct alternative and rewrite the following.

(1) The device used for producing current is called a _______.

(a) Voltmeter

(b) Ammeter

(d) Generator

(2) At the time of short circuit, the current in the circuit _______.

(a) increases

(b) decreases

(d) increases in steps

(3) The direction of the magnetic field around a straight conductor carrying current is given by _______.

(a) Right hand rule

(b) Fleming’s left hand rule

(d) none of these

(B) Say true or false. If false, write the correct sentence

(1) Magnetic poles exist in pairs.

(2) Magnetic field increases as we go away from a magnet.

(3) Magnetic lines of force always cross each other.

(4) Electric generator is used to generate current.

(1) Loudspeaker, microphone, electric motor, bar magnet.

(2) Armature coil, brushes, commutator, direct current.

(3) Fuse, insulating material, rubber shoes, generator.

(4) Voltmeter, ammeter, galvanometer, thermometer.

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