A parallel plate capacitor has two square plates with equal and opposite charges. The surface ch...

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A parallel plate capacitor has two square plates with equal and opposite charges. The surface charge densities on the plates are \( +\sigma \) and \( -\sigma \) respectively. In the region between the plates the magnitude of the electric field is:
(A) \( \frac{\sigma}{2 \varepsilon_{0}} \)
(B) \( \frac{\sigma}{\varepsilon_{0}} \)
(C) None of these
(D) undefined
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