This questions has Statement I and Statement II. Of the four choices given after the Statements, choose the one that best describes into 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.

Options

A. Statement-1 is true, Statement-2 is True, Statement-2 is a correct explanation for Statement-1
B. Statement -1 is True, Statement-2 is True, Statement -2 is NOT the correct explanation for Statement-1.
C. Statement-1 is True, Statement-2 is False.
D. Statement-1 is False, Statement-2 is True.

Answer

D

Explanation

(d) Statements I is false and statement II is true.
For ammeter, shunt resistance, `S = (IgG)/(I-Ig)`
Therefore for I to increase, S should decrease, So additional S can be connected across it .