In a Region of Space Where the Magnetic Field of the Earth

question 24

Multiple Choice

In a region of space where the magnetic field of the earth has a magnitude of 80 $\mu$ T and is directed 30 $\degree$ below the horizontal,a 50-cm length of wire oriented horizontally along an east-west direction is moved horizontally to the south with a speed of 20 m/s.What is the magnitude of the induced potential difference between the ends of this wire?

• A)0.45 mV
• B)0.35 mV
• C)0.30 mV
• D)0.40 mV
• E)0.69 mV

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Definitions:

Lead Acid Battery

A type of rechargeable battery that uses plates of lead and an acid electrolyte to generate electricity, commonly used in vehicles.

Anode

An electrode or electrical conductor into which current flows.

Cathode

An electrode through which electrons move outwards in a circuit; often associated with the reduction process in electrochemical reactions.

Electrolyte

A chemical compound that, when melted or dissolved in water or another solvent, dissociates into ions and becomes capable of conducting electricity.