A Rod Lies Across Frictionless Rails in a Uniform Magnetic

question 48

Multiple Choice

A rod lies across frictionless rails in a uniform magnetic field B, as shown.The rod moves to the right with speed v.In order for the emf around the circuit to be zero, the magnitude of the magnetic field should:

• A)not change
• B)increase linearly with time
• C)decrease linearly with time
• D)increase quadratically with time
• E)decrease quadratically with time

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Definitions:

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Pertains to the rights and duties of citizens in relation to their community and society, often emphasizing participation in civic activities.

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The status of being a citizen that entails rights and duties within a political community, including participation in the democratic process.