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Capacitors - Series and Parallel Combinations

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Multiple Choice

A parallel plate capacitor has two square plates with equal and opposite charges. The surface charge densities on the plate are $+\sigma$ and $-\sigma$ respectively. In the region between the plates the magnitude of electric field is:

  1. $\dfrac { \sigma }{ 2{ \varepsilon } _{ 0 } } $
  2. $\dfrac { \sigma }{ { \varepsilon } _{ 0 } } $
  3. 0
  4. none of these
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