Current Electricity Charging Discharging Of Capacitors Question 324
Question: The specific resistance of managing is $ 50\times {{10}^{-8}},ohm\times m $ . The resistance of a cube of length $ 50,cm $ will be
Options:
A) $ {{10}^{-6}},ohm $
B) $ 2.5\times {{10}^{-5}},ohm $
C) $ {{10}^{-8}},ohm $
D) $ 5\times {{10}^{-4}},ohm $
Show Answer
Answer:
Correct Answer: A
Solution:
$ R=\frac{\rho l}{A}=50\times {{10}^{-8}}\times \frac{50\times {{10}^{-2}}}{{{(50\times {{10}^{-2}})}^{2}}}={{10}^{-6}}\Omega $
BETA
