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Science TNSB Mentoring
Class 9
Magnetism and electromagnetism
Electromagnetism: Induction, Devices, and Practical Applications
2.
Generator
Question:
4
m.
1
.
Which of the following converts electrical energy into mechanical energy?
Motor
Switch
Battery
Generator
2
.
The part of the AC generator that passes the current from the armature coil to the external circuit is
split rings
brushes
field magnet
slip rings
3
.
Transformer works on
AC nor effectively than DC
DC only
both AC and DC
AC only
4
.
The unit of magnetic flux density is
weber/meter2
Weber
weber.meter2
weber/meter
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