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An electron is passing through a field b...

An electron is passing through a field but no force is acting on it. Under what conditions is it possible, if the motion of the electron be in the (i) electric field (ii) magnetic field?

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Verified by Experts

Electro magnetic energy is conserved.
`mu_(E) ("max") = mu_(B) ("max")`
`1//2 (Q^2)/(C ) = (1)/(2) LI^2`
`I=637` mA
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