Question Detail

PHY 102 Current Electricity Objective Question

Question

What happens to the charging time of a capacitor in an RC circuit if the capacitance (C) is increased?
Options
A It takes less time to fill up.
B It takes longer to fill up.
Correct Answer
C It has no effect on charging time.
D It might take less or longer depending on the resistor size.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 20 states that 'T increases with C' because 'Larger capacitors have more capacity!' and 'They take longer to fill up!'

Hint

Think about what a larger capacitance means for the amount of charge it can store and how that relates to the time constant, as explained on page 20.

Question Info