Current Electricity Charging Discharging Of Capacitors Question 327
Question: When the length and area of cross-section both are doubled, then its resistance
[MP PET 1989]
Options:
A) Will become half
B) Will be doubled
C) Will remain the same
D) Will become four times
Show Answer
Answer:
Correct Answer: C
Solution:
$ R _{1}\propto \frac{l}{A}\Rightarrow R _{2}\propto \frac{2l}{2A}i.e.,R _{2}\propto \frac{l}{A} $
$ \
Therefore R _{1}=R _{2} $
BETA
