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Question

Which pair is not correct for the instrument used in the laboratory and their uses from the following?

InstrumentUses
(A)VoltmeterTo measure the electric potential difference
(B)AmmeterTo measure the electric current
(C)GalvanometerTo detect the presence of current
(D)ResistorTo supply the electric energy to circuit

A
A
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B
B
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C
C
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D
D
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Solution

The correct option is D D
The uses of different electric devices are-

(A)VoltemeterUsed to measure the electric potential difference between two points in the circuit.

(B)Ammeter Used to measure electric current in any branch of the circuit.

(C)Galvanometer It is used to measure the presence of current in any branch of electric circuit.

(D)ResistorIt is that device which hinders the flow of current.

The option-D is wrongly matched.

Answer-(D)



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