Question

Statement I: The potential of grounded object is taken to be zero.
Statement II: Capacitance of the earth is very large.

• A. If both statements are true and statement II is the correct explanation of statement I.
• B. If both statements are true but statement II is not the correct explanation of statement I.
• C. If statement I is true but statement II is false.
• D. If both statements are false.

Answer 1

Answer: (A)

Earth is good conductor of very large size. The capacitance of earth is very large: If some charge is given to earth or some charge drawn from earth, it does not effect the original potential. Thus, the potential of grounded object is supposed to be zero.