Statement A: Ammeter is a low resistance galvanometer.
Statement B: Voltmeter is a high resistance galvanometer.
Read the above statements and chose the correct option given below.

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only A is correct

only B is correct

A and B are correct

A and B are false

answer is C.

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Detailed Solution

As an ammeter is connected in series in a circuit, to convert a galvanometer into an ammeter, a shunt resistor of very law resistance is connected in parallel with the galvanometer. As the ammeter is connected in series in a circuit, it should have very low resistance to maintain the actual current in the circuit. So, for ideal state, it should have zero resistance.

As a voltmeter is connect in parallel in a circuit, to convert a galvanometer into a voltmeter, a very high resistance resistor is connected in series with the galvanometer. As the voltmeter is connected in parallel in a circuit, it should have very high resistance so that it does not draw any current form the circuit to measure accurate reading. So, in ideal state, it should have infinite resistance.

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