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Asked: 2022-04-13T13:02:14+00:00 In:

A 9.0-cm -long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field….

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A 9.0-cm -long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire and rail is 0.33 Ω . Pulling the wire with a force of 1.1 N causes 3.9 W of power to be dissipated in the circuit.

Part A

What is the speed of the wire when pulled with 1.1 N ?

Express your answer in meters per second.
V

V =

nothing

   m/s  

Part B

What is the strength of the magnetic field?

Express your answer in tesla.

♦ Relevant knowledge
If a wire slides over the U shape rail within the the perpendicular magnetic field induction current is detected within the circuit. The force used to move the wire shows up as electricity within the circuit.

speedstrengthwire
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