Current Electricity Charging Discharging Of Capacitors Question 243
Question: In a meter bridge, the balancing length from the left end (standard resistance of one ohm is in the right gap) is found to be 20 cm. The value of the unknown resistance is
[CBSE PMT 1999; Pb PMT 2004]
Options:
A) $ 0.8,\Omega $
B) $ 0.5,\Omega $
C) $ 0.4,\Omega $
D) $ 0.25,\Omega $
Show Answer
Answer:
Correct Answer: D
Solution:
$ \frac{X}{1}=\frac{20}{80} $
Therefore $ X=\frac{1}{4}\Omega =0.25,\Omega $ .
BETA
