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A uniform field is exists in the region ...

A uniform field is exists in the region directed away from the page. A charged particle, moving in the plane of the page follows a anticlockwise spiral of increasing radius as shown. True explanation is:

A

charge is positive and slowing down

B

charge is negative and slowing down

C

charge is positive and speeding up

D

charge is negative and speeding up

Text Solution

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The correct Answer is:
D
`R=(mV)/(qB) , R uarr , v uarr`
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