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Question:

This question has statement I and statement II. Of the four choices given after the statements, choose the one that best describes the two statements. Statement-I: Higher the range, greater is the resistance of ammeter. Statement-II: To increase the range of ammeter, additional shunt needs to be used across it.

Statement I is true, Statement II is true, Statement II is not the correct explanation of StatementI.

Statement I is true, statement II is false.

Statement I is false, Statement II is true

Statement I is true, Statement II is true, Statement II is the correct explanation of statement- I .

Solution:

For Ammeter, S = IgG/(I-Ig) So, for I to increase, S should decrease, so additional S can be connected across it.