Questions
The work done in increasing the P.D. across the plates of a capacitor from 4 V to 6 V is W. The further work done in increasing the P.D. from 6 V to 8 V is
a
4W3
b
3W4
c
7W5
d
5W7
detailed solution
Correct option is C
w1w2=12CV22-V12112CV22-V122=62-4282-62ww2=36-1664-36=2028=57 ; w2=7w/5Talk to our academic expert!
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A condenser of capacity 50 F is charged to 10 volts. Its energy is equal to
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