Question

Example 23-8 depicts the following scenario. The lightbulb in the circuit shown in the figure has a resistance of 10 Ω and consumes 4.9 W of power; the rod is 1.15 m long and moves to the left with a constant speed of 2.8 m/s . The strength of the magnetic field is 2.2 T .external magnetic

Part A: Find the current that flows in the circuit.

Part B:What speed must the rod have if the current in the circuit is to be 1.2 A ?

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