A Dc Motor Is Connected to an Emf of 12

question 56

Multiple Choice

A dc motor is connected to an emf of 12.0 V. The resistance of its windings is 2.0 Ω. At normal operating speed, the motor delivers 6.0 W of mechanical power. What current does it draw at normal operating speed?

• A) 6.0 A
• B) 0.50 A
• C) 1.0 A
• D) 3.0 A

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Definitions:

Twisted-pair Cable

A type of wiring in which two conductors of a single circuit are twisted together to cancel out electromagnetic interference.

External Casing

The outer shell or covering that protects the internal components of a device or machine.

Wires

Thin strands of metal or other materials used to conduct electricity or signals between devices or components.

Radio Waves

Electromagnetic waves with wavelengths longer than infrared light, used in wireless communication systems to transmit data and broadcasts.