Question Detail

PHY 102 Current Electricity Objective Question
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Question

In a discharging RC circuit, what happens to the charge on the capacitor plates after one time constant (τ)?
Options
A It drops by 64% from its initial value
B It rises to 64% of its initial value
C It drops to 36% of its initial value
Correct Answer
D It drops to 0%
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 29 states that in one time constant, the "Charge on plates DROPS by 64%". This means 100% - 64% = 36% of the initial charge remains on the plates.

Hint

During discharging, both charge and current decrease exponentially. Consider the remaining fraction after one time constant.

Question Info

Course: PHY 102
Topic: Current Electricity
Type: Objective
Difficulty: Not specified
Question 681 of 1819
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