SSC JE Electrical Engineering 2017 Set 4 Paper

Question : 190 of 200

Marks: +1, -0

The current flowing in the conductors of a DC motor is _____

AC
DC
AC as well as DC
transients

Solution:

Current flow in the conductor of DC motor is AC.
When armature is rotate in magnetic field then conductor cut magnetic like of force and EMF induce in a conductor is AC

\EMF={dϕ}/{dt}

if the conductor is a closed circuit then induced current (AC) flow through it.

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