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When an electron, accelerated under a P....

When an electron, accelerated under a P.D of 1000 volts, enters a uniform transverse magnetic field, it experiences a force of `sqrt2N`. What will be force acting on the same electron in the same magnetic field, if the accelerating potential is inclined to 2000 V?

A

`1 N`

B

`1.5 N`

C

`2 N`

D

`3 N`

Text Solution

Verified by Experts

The correct Answer is:
C
`F_2/F_1=(Bev_2)/(Bev_1)=v_2/V_1=sqrt(V_2)/V_1=sqrt2 therefore F_2=sqrt2xx sqrt2=2N `
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