A Single Loop of Wire with a Radius of 7

question 50

Multiple Choice

A single loop of wire with a radius of 7.5 cm rotates about a diameter in a uniform magnetic field of 1.6 T. To produce a maximum emf of 1.0 V, it should rotate at:

• A) 0
• B) 2.7 rad/s
• C) 5.6 rad/s
• D) 35 rad/s
• E) 71 rad/s

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Definitions:

Voltage Drop Testing

A diagnostic method used to locate resistance or issues in an electrical circuit by measuring the voltage loss between two points under a load condition.

Ohmmeter

An electrical instrument used to measure the resistance of a component or circuit, aiding in troubleshooting and electrical work.

Field Coils

Used in electric motors and other electrical devices to flow current through to establish an electromagnetic field.

Armature Windings

Coils of wire wound around the armature of an electric machine (such as a motor or generator) which are responsible for generating magnetic fields when current passes through them.