SSC JE Electrical Engineering 2017 Set 2 Paper

Question : 198 of 200

Marks: +1, -0

According to Lenz's law, the induced e.m.f acts up a current in which direction ?

Some direction of cause producing it
Direction of gravity
Direction opposite of cause producing it
None of these

Solution:

According to Lenz’s Law the direction of current induced in a conductor by change in magnetic field due to induction is such that it create a magnetic field that opposes the change that product it.

[e={-dϕ}/{dt}]

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