Current Electricity Charging Discharging Of Capacitors Question 29
Question: Assertion : Bending a wire does not effect electrical resistance. Reason : Resistance of wire is proportional to resistivity of material.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: A
Solution:
Resistance wire $ R=\rho \frac{l}{A} $ . where r is resistivity of material which does not depend on the geometry of wire. Since when wire is banded, resistivity, length and area of cross-section do not change,
Therefore resistance of wire also remain same.
BETA
