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A charged particle of mass $10^{- 3}$ kg and charge $10^{- 5}$ C enters a magnetic field of induction 1 T. If g = 10 $m s^{- 2}$ , for what value of velocity will it pass straight through the field without deflection?

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10-3m/s

103m/s

106m/s

1m/s

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detailed solution

Correct option is B

qvB=mg, v=mgqB⇒ 10−3×1010−5×1=103m/s

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A charged particle of mass 10-3 kg and charge 10-5 C enters a magnetic field of induction 1 T. If g = 10 ms-2 , for what value of velocity will it pass straight through the field without deflection?

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A charged particle of mass $10^{- 3}$ kg and charge $10^{- 5}$ C enters a magnetic field of induction 1 T. If g = 10 $m s^{- 2}$ , for what value of velocity will it pass straight through the field without deflection?