An electron moving with a velocity V-1-2- m-s at a point in a magnetic field experiences a force F-1-2-N- If the electron is moving with a velocity V-2-2- m-s at the same point- it experiences a force F-2-2-N- The force the electron would experience if it were moving with a velocity V-3-2k- m-s at the same point is-

The correct option is A zeroForce acting on the particle =q. V× B #160; 2îq×B⃗= 2ĵ Thus magnetic field B⃗ is in +ve z direction, viz. ...

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Byju's Answer

Standard XII

Physics

Motional EMF in an Open Conductor

An electron m...

Question

An electron moving with a velocity $_{1} = 2^i$ m/s at a point in a magnetic field experiences a force $_{1} = - 2^j N$ . If the electron is moving with a velocity $_{2} = 2^j$ m/s at the same point, it experiences a force $_{2} = + 2^i$ N. The force the electron would experience if it were moving with a velocity $_{3} = - 2^k$ m/s at the same point is?

zero

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- 2^k

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Solution

The correct option is A zero
Force acting on the particle $= q . - --- \to V \times B$
$2^i q \times \to B = - 2^j$
Thus magnetic field $\to B$ is in $+ v e$ z direction, viz. $^k$ . Hence electric force on the particle is $0$
Thus force on the electron experienced when moving with a velocity of $- 2^k$ will be $0$

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Similar questions

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The correct option is A zeroForce acting on the particle =q.−−−−→V×B2^iq×→B=−2^jThus magnetic field →B is in +ve z direction, viz. ^k. Hence electric force on the particle is 0 Thus force on the electron experienced when moving with a velocity of −2^k will be 0