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प्रश्न
If the radius of a sphere is doubled without changing the charge on it, then electric flux originating from the sphere is ______.
पर्याय
double
half
same
zero
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उत्तर
same
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संबंधित प्रश्न
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1) The time constant of the circuit.
2) The current in the circuit in steady state
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The current in a long solenoid of radius R and having n turns per unit length is given by i= i0 sin ωt. A coil having N turns is wound around it near the centre. Find (a) the induced emf in the coil and (b) the mutual inductance between the solenoid ant the coil.
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