Assertion :Higher the range, greater is the resistance of ammeter. Reason: To increase the range of ammeter, additional shunt needs to be used across it.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
For Ammeter, S $= \frac{I_{g} G}{I - I_{g}}$
So for I to increase, S should decrease, so additional S can be connected across it.
So the assertion is correct but the reason is incorrect.

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