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A uniform magnetic field acts right angl...

A uniform magnetic field acts right angles to the direction of motion of electrones. As a result, the electron moves in acircular path of radius 2 cm. If the speed of electrons is doubled, then the radius of the circular path will be

A

4cm

B

2cm

C

1cm

D

8cm

Text Solution

Verified by Experts

The correct Answer is:
A
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