Question

Differentiate between dc motor and ac motor. 10th answer

Answer 1

Explanation:

A.C Generator :

• It convert mechanical energy into electrical energy .
• It work on the principle of electromagnetic induction.
• It make use of two separate coaxial slip rings

D.C Motor :

• A d.c motor is a device which convert electrical energy into the mechanical energy.
• It work on principle of force acting on current carrying conductor placed in a magnetic field
• A d.c motor make use of two part of slip ring which acts as a commutator.

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Answer 2

Answer:

•Alternative current:

1) The current whose magnitude changes continuously and direction changes periodically.

2) The source of AC is generator.

3) AC is supplied at 220V.

4) The frequency of AC is 50Hz and current changes it's direction 100 times in 1 second.

•Direct current:

1) The current whose magnitude does not change with time.

2) The source of DC current is cell, battery.

3) The shock of DC is not dangerous.

4) The frequency of DC is 0Hz.

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