Questions
If the potential of a capacitor having capacity 6 F is increased from t0 volt to 20 volt, thon increase in energy will be
a
4×10−4J
b
9×10−6J
c
9×10−4J
d
4×10−6J
detailed solution
Correct option is C
ΔW=12CV22−V12 =126×10−6(20)2−(10)2J=9×10−4JTalk to our academic expert!
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Three point charges of equal value q are placed at the vertices of al equilateral triangle. The resulting lines of force should be sketch as in
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