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The insulated plates of a charged parallel plate capacitor (with small separation between the plates) are approaching each other due to electrostatic attraction . Assuming no otherforce to be operative and no radiation taking place , which of the following graphs approximately shows the variation with time (t) of the potential difference (V) between the plates ? |
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Answer»
Also , electric field remains constant between the plates. So , `VpropdandV=E*d` FORCE on each plate `=ma=(q^(2))/(2Aepsilon_(0))` `therefore` Acceleration , `a=(q^(2))/(2Aepsilon_(0)m)` SINCE a = constant `therefore` d-t graph will be so V - t curve (`becauseVpropd)` 
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