Questions
A spherical metallic shell of radius 10 cm is charged to a potential of 100 volt. Then its surface charge density is
detailed solution
Correct option is A
V=14π∈0QR⇒Q=4π∈0R.V∴ σ=Q4πR2=4π∈0RV4πR2=∈0VR∴ σ=8.85×10−12×1000.1Cm2=8.85×10−9 Cm2Talk to our academic expert!
Similar Questions
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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