An electron moves straight inside a charged parallel plate capacitor of uniform charge density $\sigma$. The space between the plates is filled with a uniform magnetic field of intensity $B$,as shown in the figure. Neglecting the effect of gravity,the time taken for the straight-line motion of the electron in the capacitor is:
- A$\frac{\sigma}{\varepsilon_0 l B}$
- B$\frac{\varepsilon_0 B}{\sigma}$
- C$\frac{\sigma}{\varepsilon_0 B}$
- D$\frac{\varepsilon_0 l B}{\sigma}$
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View SolutionThe dimensional formula of $\frac{1}{2} \mu_0 H^2$ (where $\mu_0$ is the permeability of free space and $H$ is the magnetic field intensity) is:
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