Current Electricity Charging Discharging Of Capacitors Question 425

Question: A resistance R is stretched to four times its length. Its new resistance will be

[ISM Dhanbad 1994; UPSEAT 2003]

Options:

A) 4 R

B) 64 R

C) $ R/4 $

D) 16 R

Show Answer

Answer:

Correct Answer: D

Solution:

$ R’=n^{2}R,\Rightarrow ,R’=16R $