By which of the following methods an ammeter can be converted to a voltmeter?

By which of the following methods an ammeter can be converted to a voltmeter ?

A. By installing the instrument in parallel with the circuit
B. By changing the scale
C. By putting a large resistance is series with the actual measuring part of the instrument
D. By putting a large resistance in parallel with the actual measuring part of the instrument

Show Answer

Answer: C

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