wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Initially capacitor was uncharged and switch was open. Switch is closed at t=0. Ammeter and voltmeterare ideal. [All units are in SI]

Open in App
Solution

After long time, current through the circuit will be zero since capacitor will behave as open circuit. Therefore voltmeter will read 10 V.

Just after closing the switch, voltage across capacitor will be 0 V. Hence current will be i=20+104+2=5A.

Reading of voltmeter just after closing the switch will be 102i=0V.

After long time, entire voltage will appear across the capacitor, hence, Q=CV=2×30=60C

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Transformer
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon