The light bulb in the circuit shown here(Figure 1) has a resistance of 12 ; the rod is 1.31 m long and moves to the left with a constant speed of 3.4…

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The light bulb in the circuit shown here(Figure 1) has a resistance of 12 Ω ; the rod is 1.31 m long and moves to the left with a constant speed of 3.4 m/s ; the strength of the magnetic field is 2.0 T .

A) Suppose we now adjust the strength of the magnetic field until the speed of the rod is 2.33 m/s , keeping the force equal to 1.9 N . What is the new magnitude of the magnetic field?

B) Why is the magnetic force exerted on the rod to the right?

C) Why is the direction of the induced current clockwise?

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