Physics q66

0. A galvanometer is used to measure small currents. A certain galvanometer has a resistance 500 Ω and gives a full-scale deflection for a current of 200 μA. This meter is connected as shown in the figure to make a multi range current meter.

Connection to the circuit is made at the terminals shown. The currents in the external circuit needed to give full scale deflections when X is connected to A, Band C in turn are shown in the table.

X connected to	Current in the external circuit (mA)
A	1
B	10
C	100

The value of R₃ is (NTSE Andhra Pradesh, Stage-I, 2016-17)

Answer
Comment
Array

Option : C
Explanation :

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