Question

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: A conductor is an equipotential. Reason R: \(\nabla\cdot\vec{B}=0\), where \(\vec{B}\) is magnetic field. Choose the most appropriate answer from the options given below

• A. Both A and R are correct and R is the correct explanation of A.
• B. Both A and R are correct but R is NOT the correct explanation of A.
• C. A is correct but R is not correct.
• D. A is not correct but R is correct.

Hint:

Electric field inside conductor is zero in electrostatic equilibrium.

Answer 1

The Correct Option is B

Concept:
Conductors and magnetic fields obey different electromagnetic laws.
Step 1:
Potential inside conductor remains constant in electrostatic equilibrium. Thus Assertion A is correct.
Step 2:
Gauss law for magnetism is: \[ \nabla\cdot\vec{B}=0 \] Thus Reason R is correct.
Step 3:
Reason R is unrelated to equipotential nature of conductor. Thus R does not explain A.
Step 4:
\[ \boxed{\text{Both A and R are correct but R does not explain A}} \] \[ \boxed{\text{Correct Option = (2)}} \]