Problem: The switch in the figure has been closed for a very long time.Part A What is the charge on the capacitor?Part B The switch is opened at . t= 0 s At what time has the charge on the capacitor decreased to 29% of its initial value?

🤓 Based on our data, we think this question is relevant for Professor Meyertholen's class at UCSD.

FREE Expert Solution

Part A

The switch has been closed for long, so the capacitor behaves as an open circuit. No current is flowing from the capacitor.  Equivalent resistance for the series connection:

Req = 60 + 40 = 100 Ω

Current, i = V/R = 100V/100  = 1.0 A

The voltage across the 40Ω - resistor:

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Problem Details

The switch in the figure has been closed for a very long time.

Part A 

What is the charge on the capacitor?


Part B 

The switch is opened at . t= 0 s At what time has the charge on the capacitor decreased to 29% of its initial value?

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What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Meyertholen's class at UCSD.