. The electric potential is zero __________. (Inside a conductor, Midway between any two charges of the opposite signs, Midway between two equal charges of the sme sign)

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G Prasad

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inside a conductor
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Native English Speaker with 32 years experience in teaching English and communication skills.

Inside a conductor, Since the electric field is equal to the rate of change of potential, this implies that the voltage inside a conductor at equilibrium is constrained to be constant at the value it reaches at the surface of the conductor.
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Third option
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Potential V = q/4? ? r where q- charge V-potential due to the charge q r-distance from the charge q Here ? means epsilon naught. Potential is a scalar quantity, it doesn't have direction. It simply gets added as any normal numbers. So lets assume that the two charges are...
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Potential V = q/4? ? r where q- charge V-potential due to the charge q r-distance from the charge q Here ? means epsilon naught. Potential is a scalar quantity, it doesn't have direction. It simply gets added as any normal numbers. So lets assume that the two charges are a distance 2d apart. So the centre is at a distance of d from both the charges. -q ----------.---------- +q We have to find the potential at the center. So Potential at the center due to charge q is V1 = q/4? ? d and due to charge -q is V2 = -q/4? ? d. So the total potential is V1 + V2, which when you add is zero. As you can see, the potential will be 0 only when the charges have opposite signs, because only then both the potentials will cancel each other and give 0. Therefore, the answer is Option B. read less
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Math Magician

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Equal
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