Question Detail

PHY 102 Current Electricity Objective Question

Question

If a charging RC circuit has a larger resistance (R), what effect does it have on the time it takes to charge the capacitor?
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 capacitor size.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 20 explains that 'T increases with R' because 'Larger resistors decrease current' and 'Less charge/time arrives at capacitor,' meaning 'It takes longer to fill up capacitor.'

Hint

Consider the relationship between resistance, current, and the rate at which charge accumulates on the capacitor, as described on page 20.

Question Info