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Grade: 12th pass
        
An electron accelerated by 200 V, enters in magnetic field. If its velocity is 100 m/s, then (e/m) for it will be.
(A) 1.75 * 10^10
(B) 1.75 * 10^11
(C) 1.75 * 10^9
(D) 1.75 * 10^6
8 months ago

Answers : (1)

Vikas TU
7767 Points
							
The kinetic energy would be after accelerateed by 200 V would be:
0.5*mv^2 = eV
0.5*v^2/V = e/m
e/m = (0.5*100^2)/200 => 25.
 
7 months ago
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