Question

Part One: A conducting rod with a length of 0.850 m rests on two parallel conducting rails. The area between the conducting rails contains a uniform magnetic field of 4.00 T directed into the page. The rod is pulled to the left with a speed of 2.50 m/s. At each end of the parallel rails, there is a resistor, with R1 = 9.00 ? and R2 = 6.00 ?. 1. Calculate the induced emf in the conducting rod as it moves along the rails. 2. Calculate the current flowing through each resistor. Clearly indicate the direction of current flow through the resistor. 3. What force must be applied to the conducting rod to maintain the constant speed given above? Part Two: A long conducting wire rests in the same plane as a circular loop of wire, as shown below. The conducting wire carries a current flowing from A to B on the diagram. 1. Sketch the magnetic field surrounding the conducting wire. 2. Suddenly, the current in the wire AB is switched off. Indicate the direction of induced current flow in the circular loop of wire, if any. Justify your answer.

          Part One:
A conducting rod with a length of 0.850 m rests on two parallel conducting rails. The area between the conducting rails contains a uniform magnetic field of 4.00 T directed into the page. The rod is pulled to the left with a speed of 2.50 m/s. At each end of the parallel rails, there is a resistor, with R1 = 9.00 ? and R2 = 6.00 ?.
1. Calculate the induced emf in the conducting rod as it moves along the rails.
2. Calculate the current flowing through each resistor. Clearly indicate the direction of current flow through the resistor.
3. What force must be applied to the conducting rod to maintain the constant speed given above?
Part Two:
A long conducting wire rests in the same plane as a circular loop of wire, as shown below. The conducting wire carries a current flowing from A to B on the diagram.
1. Sketch the magnetic field surrounding the conducting wire.
2. Suddenly, the current in the wire AB is switched off. Indicate the direction of induced current flow in the circular loop of wire, if any. Justify your answer.

Part One:
A conducting rod with a length of 0.850 m rests on two parallel conducting rails. The area between the conducting rails contains a uniform magnetic field of 4.00 T directed into the page. The rod is pulled to the left with a speed of 2.50 m/s. At each end of the parallel rails, there is a resistor, with R1 = 9.00 ? and R2 = 6.00 ?.
1. Calculate the induced emf in the conducting rod as it moves along the rails.
2. Calculate the current flowing through each resistor. Clearly indicate the direction of current flow through the resistor.
3. What force must be applied to the conducting rod to maintain the constant speed given above?
Part Two:
A long conducting wire rests in the same plane as a circular loop of wire, as shown below. The conducting wire carries a current flowing from A to B on the diagram.
1. Sketch the magnetic field surrounding the conducting wire.
2. Suddenly, the current in the wire AB is switched off. Indicate the direction of induced current flow in the circular loop of wire, if any. Justify your answer.

Added by Nancy C.

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