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By mistake, a voltmeter is connected in ...

By mistake, a voltmeter is connected in series and an ammeter is connected in parallel, with a resistance in an electrical circuit. What will happen to the instruments?

Text Solution

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With the presence of a voltmeter in series with resistance `R`
in a circuit, due to volmeter's high resistance, the current `I`
in the circuit will decrease appreciably to `I'` and as this `I'` will
further divide in resistance `R` and ammeter, the current through
ammeter `I_(2)` will be even lesser than `I'`. So instruments will not be damaged.
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