Physics · Electrostatics
A spherical conductor of radius R having a uniformly distributed charge Q pulsates symmetrically with frequency ω such that its radius changes over time by ±10%. Which of the following statements is correct regarding the electric flux?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The net outward electric flux across a closed spherical surface of radius r > 1.5R pulsates with frequency ω
- 2The net outward electric flux across a fixed spherical surface of radius r = 2R is always constant and equal to Q/ε0✓
- 3The net outward electric flux across a spherical surface of radius r = 2R is zero
- 4The electric flux within any region depends entirely on the changing speed of pulsation
Correct answer
The net outward electric flux across a fixed spherical surface of radius r = 2R is always constant and equal to Q/ε0
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