Question Detail

PHY 102 Current Electricity Objective Question
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Question

How does the current through the resistor behave during the discharge of an RC circuit?
Options
A It increases exponentially.
B It decreases exponentially.
Correct Answer
C It remains constant at a negative value.
D It becomes zero instantly.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The graph on page 27 (a) shows the current 'i' decreasing exponentially during discharge. Page 29 also notes, 'Current through resistor DROPS by 64% (“negative”)'. The 'negative' indicates direction, but the magnitude decreases exponentially.

Hint

Examine the graph of current versus time for a discharging capacitor on page 27. Pay attention to the shape of the curve.

Question Info

Course: PHY 102
Topic: Current Electricity
Type: Objective
Difficulty: Not specified
Question 710 of 1819
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