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NEET
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Physics
Chapter
Capacitance

NEET · Physics · Capacitance

The insulated plates of a charged parallel plate capacitor (with...

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 other force to be operative and no radiation taking place, which of the following graphs approximately shows the variation with time (t)(t) of the potential difference (V)(V) between the plates?The insulated plates of a charged parallel plate capacitor (with small separation between the plates) are approachingThe insulated plates of a charged parallel plate capacitor (with small separation between the plates) are approachingThe insulated plates of a charged parallel plate capacitor (with small separation between the plates) are approachingThe insulated plates of a charged parallel plate capacitor (with small separation between the plates) are approaching

Options

  1. AGiven below is one of the types of ecological pyramids. This type represents
  2. BGiven below is one of the types of ecological pyramids. This type represents
  3. CGiven below is one of the types of ecological pyramids. This type represents
  4. DGiven below is one of the types of ecological pyramids. This type represents

Correct answer

A. Given below is one of the types of ecological pyramids. This type represents

Step-by-step solution

Force =12⋅σε0q∴=\frac{1}{2} \cdot \frac{\sigma}{\varepsilon_{0}} q \therefore Relative acceleration of plates. arel=2FMa_{\mathrm{rel}}=\frac{2 F}{M} Potential difference, V=EdV=E d where, d=d0−12arel t2d=d_{0}-\frac{1}{2} a_{\text{rel }} t^{2} (: plates are moving) \therefore V=E\left[d_{0}-\frac{1}{2} a_{\mathrm{rel} } t^{2}\right] This is a equation of a parabola with downward concavity.
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