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An electron moving along the X-axis with velocity 3200000 enters a uniform electric field.If it comes to rest after travelling a distance of 9cm in the field,the electric intensity is

An electron moving along the X-axis with velocity 3200000 enters a uniform electric field.If it comes to rest after travelling a distance of 9cm in the field,the electric intensity is

Grade:12

1 Answers

Khimraj
3007 Points
3 years ago
retardation of electron will be qE/m
SO applying third equation of motion
0 = 32000002 – 2(qE/m)*0.09
1.024*1013 = 1.8*1.6*10-19*E/9.1*10-31
SO E = 32.36 N/C.
Hope it clears.

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