a) Consider an infinite parallel plate capacitor with voltage difference V and p

Question

a) Consider an infinite parallel plate capacitor with voltage difference V and plate separation d. If an uncharged point particle is inserted between the plates, what is the force on the particle? b) If you insert a charged point particle with charge Q between the plates (with separation d and voltage difference V), what is the magnitude of the force on the particle, assuming that the particle does not significantly affect the E field between the plates? c) If you insert a charged point particle with charge Q outside the plates, what is the force on the particle?

Explanation / Answer

a) if particle is uncharged then force is zero b)if particle charge is Q the force F = QE = QV/d = QV/d c)if particle is outside the plates thenforce is again zero because electricfield is only between plates

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