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A uniform magnetic field exists in a cir...

A uniform magnetic field exists in a circular region of radius `r`.The magnitude of magnetic field is `B` and points inward.An electron flies into the region radially as shown in figure.After a certain time, the electron deflected by the magnetic field leaves the region.The time interval during which the electron moves in the region is `(Nm tan^(-1(eBr)/(mV)))/(eB)`.Then find value of `N`.(`m` is mass of electron and `e` is charge of electron)

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The correct Answer is:
`2`
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RESONANCE ENGLISH-ELECTRODYNAMICS-Exercise-2 PART-2
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  6. Suppose that the radius of cross section of the wire used in the previ...

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  7. A straight segment OC (of lengh L) of a circuit carrying a current I i...

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  8. A U-shaped wire of mass m and length l is immersed with its two ends i...

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  14. Consider a solid sphere of radius r and mass m which has charge q dist...

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  17. A thin insulated wire forms a plane spiral of N=100 tight turns carryi...

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