(a) Name one device which works on the magnetic effect of current.
(b) Name one device which works on the phenomenon of electromagnetic induction.
(c) Which device converts electric energy into mechanical energy?
(d) Describe the principle of working of an electric motor.
(e) Explain the principle of working of an electric generator.
Answers
Explanation:
a) electric motor
b) generator
c) generator
d) just Google it
e) just Google it
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Explanation:
(a) Electric bells work on the current’s magnetic effect. For producing sound, it uses an electromagnet.
(b) On the phenomenon of electromagnetic induction, electric generator works. Another device working on the electromagnetic induction is the electrical transformer.
(c) Electric motor converts electric energy into mechanical energy.
(d) Electric motor’s principle – A rectangular shaped coil is placed in a magnetic field through which the current is passed. And, this rotates due to the continuous action of force.
(e) Based on the phenomenon of electromagnetic induction, there will be conversion to electrical energy from mechanical energy in the electrical transformer. This device has a permanent magnet poles pair with rectangular coil rotating for giving the required effects.