Questions
A parallel capacitor is connected to a 20 volt battery as shown in figure. Now the plates of the capacitor are pulled apart to increase their separation to two times its present value in 0.5 second. Then average current flown through the battery during this period is _______
detailed solution
Correct option is B
Iavg =ΔQΔt=CV−C2.VΔt=12 CVΔt=12 × 2 × 20 0.5 μA = 40 μATalk to our academic expert!
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Two identical metal plates are given positive charges Q1 and Q2 (<Q1) respectively. If they are now brought close together to form a parallel plate capacitor with capacitance C, the potential difference between them is
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