Two infinitely long parallel conducting plates having surface charge densities $ + \sigma $ and $ - \sigma $ respectively, are separated by a small distance. The medium between the plates is vacuum. If ${\varepsilon _0}$ is the dielectric permittivity of vacuum, then the electric field in the region between the plates is
Two infinitely long parallel conducting plates having surface charge densities $ + \sigma $ and $ - \sigma $ respectively, are separated by a small distance. The medium between the plates is vacuum. If ${\varepsilon _0}$ is the dielectric permittivity of vacuum, then the electric field in the region between the plates is
- [AIIMS 2005]
- A
$0\,volts/meter$
- B
$\frac{\sigma }{{2{\varepsilon _o}}} volts/meter$
- C
$\frac{\sigma }{{{\varepsilon _o}}} volts/meter$
- D
$\frac{{2\sigma }}{{{\varepsilon _o}}} volts/meter$
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$(b)$ Find the charges on $\beta $ and $\gamma $ after the collision.
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