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17. | A charge projected with velocity of 10m/sin a magnetic fiels of10Tat an angle of60°,if force exerted on charge is2.78x10–17N,then value of charge is | |
A. | 1.6x10–19C | |
B. | 2.7x10–19C | |
C. | 3.2x10–19C | |
D. | 4.8x10–19C | |