Magnetic Effects Of Current Question 457

Question: A voltmeter has a range 0-V with a series resistance R. With a series resistance 2R, the range is $ 0-V’ $ . The correct relation between V and V? is

Options:

A) $ V’=2V $

B) $ V’>2V $

C) $ V’»2V $

D) $ V’<2V $

Show Answer

Answer:

Correct Answer: D

Solution:

[d] $ V=i_{g}(G+R) $ and $ V’=i_{g}(G+2R) $ It shows, $ V<V’<2V $