Question

The speed of a DC motor can be increased by

• A. increasing area and number of turns in the coil.
• B. increasing the magnetic field.
• C. increasing current
• D. decreasing current

Answer 1

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

The correct options are
A

increasing area and number of turns in the coil.

B

increasing the magnetic field.

C

increasing current

The speed of a DC motor can be increased by:

1) increasing the area of the coil.

2) increasing the number of turns in the coil.

3) increasing the strength of the magnetic field and current.