Question Detail

PHY 102 Current Electricity Objective Question
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Question

As a capacitor charges in an RC circuit, how does the current through the circuit behave?
Options
A It increases exponentially.
B It decreases exponentially.
Correct Answer
C It remains constant.
D It fluctuates randomly.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The graph on page 19 (a) shows the current 'i' decreasing exponentially with time. Page 21 further states, 'Current drops to 1/e of initial value (about 36%)' and 'The current decreases exponentially with time as the capacitor charges.'

Hint

Examine the graph of current versus time for a charging capacitor on page 19, or read the summary on page 21.

Question Info

Course: PHY 102
Topic: Current Electricity
Type: Objective
Difficulty: Not specified
Question 702 of 1819
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