To increase the range of an ammeter we need to connect a suitable

To increase the range of an ammeter we need to connect a suitable
| To increase the range of an ammeter we need to connect a suitable

A. low resistance in parallel

B. low resistance in series

C. high resistance in parallel

D. high resistance in series

Please scroll down to see the correct answer and solution guide.

Right Answer is: A

SOLUTION

CONCEPT:

  • Ammeter: An ammeter is an instrument which is used to measure the current flowing through the circuit.
    • It has low resistance, ideally zero.
    • By connecting ammeter in series, it allows all of the circuit current to pass through it and hence measure it.

EXPLANATION:

  • The ammeter is connected in series with the circuit. To increase its range means we have to enable it to read a higher value of current.
  • For this, we connect a low - value resistance in parallel to it which leads to bypassing a major portion of current through it. So option 1 is correct.

EXTRA POINTS:

  • To increase the ranges of a voltmeter, we need to connect a high series of multiplier resistance in series with voltmeters.

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