Cylinder with radius R and height H encloses two point charges –Q and +2Q. The  electric flux through the cylinder is φ. If the cylinder’s radius is increased twice, what is the flux through the cylinder?  A. 2 φ  B. φ  C. 0.5 φ  D. 0.25 φ

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.