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Find the electric field applied on a system with electrons having a velocity 5m/s subjected to a magnetic flux of 3.6 units.(a) 15(b) 18(c) 1.38(d) 0.72I had been asked this question in an online interview.I'm obligated to ask this question of Maxwell Law 1 topic in section Maxwell Equations of Electromagnetic Theory

Answer»

Correct choice is (b) 18

Easiest explanation: The electric field intensity is the PRODUCT of the velocity and the magnetic flux density. Thus E = v x B, on substituting v = 5 and B = 3.6, we GET E = 5 x 3.6 = 18 units.



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