Question

The speed of a DC motor can be altered with change in:

• A. Area and number of turns in the coil
• B. Magnetic field
• C. Current
• D. Polarity of the magnets

Answer 1

Answer: (A), (B), (C)

The correct options are
A Area and number of turns in the coil
B Magnetic field
C Current

The speed of a dc motor can be increased by increasing:

1) The area of the coil.

2) The number of turns of the coil.

3) The magnetic field and current.