10.1 A teacher demonstrates how current can be obtained using a bar magnet, a coil and a galvanometer. The teacher moves the bar magnet up and down, as shown by the arrow in the diagram below.
10.1.1 Briefly describe how the magnet must be moved in order to obtain a LARGE deflection on the galvanometer. (2)
The two devices, A and B, below operate on the principle described in QUESTION 10.1.1 above.
10.1.2 Write down the name of the principle. (1)
10.1.3 Write down the name of part X in device A. (1)
10.2 A 220 V, AC voltage is supplied from a wall socket to an electric kettle of resistance 40,33 Ω. Wall sockets provide rms voltages and currents.
Calculate the:
10.2.1 Electrical energy consumed by the kettle per second (4)
10.2.2 Maximum (peak) current through the kettle (3)
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