Revision: Electromagnetic Induction Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 20 Electromagnetic Induction - Revision Quiz Test your understanding of Electromagnetic Induction here: 1 / 5 1) 2014 S4 EOY P1 Q26 The diagram below shows a battery completing a circuit of a metal rod resting on two metal bars. The metal rod is located in a magnetic field that is directed perpendicularly into the page. How will the metal rod move? The rod will rotate clockwise. The rod will move to the left. The rod will rotate anticlockwise. The rod will move to the right. 2 / 5 2) Coil P is connected to a sensitive centre-zero galvanometer. Another coil Q is connected to a battery, a variable resistor and a switch S as shown. Initially the resistance of the variable resistor is set to the highest value. The switch S is closed and the resistance of the variable resistor is gradually decreased to a minimum. Finally, the switch S is opened. The deflection of the galvanometer is maximum at the instant the switch S is closed. when the steady current is Q is maximum. at the instant the switch S is opened. when a small steady current is flowing in Q. 3 / 5 3) In some countries, electrical power is transmitted over a distance using overhead cables. Why is electrical power transmitted at high voltage using these cables? Electrical energy can travel faster along the cables. There is less energy loss. This will result in a larger current flowing in the cables. Electrical contact with high voltage cable is less dangerous. 4 / 5 4) A bar magnet is pushed towardsa solenoid PQ as shown below. Which of the following statements correctly describes the pole induced at Q and the direction of current flow through the galvanometer G? Pole induced at Q: south Direction of current through G: left to right Pole induced at Q: north Direction of current through G: left to right Pole induced at Q: south Direction of current through G: right to left Pole induced at Q: north Direction of current through G: right to left 5 / 5 5) 2015 S4 EOY P1 Q27 A bar magnet drops vertically through a horizontal loop of copper wire as shown in the diagram. The loop of wire is viewed from above at the position X. Which of the following statements is correct? The induced current in the loop of wire will first flow in a clockwise direction then in an anticlockwise direction. The induced current in the loop of wire will flow in an anticlockwise direction. The induced current in the loop of wire will first flow in an anticlockwise direction then in a clockwise direction. The induced current in the loop of wire will flow in a clockwise direction. Your score is Restart quiz
