Electromagnetism questions | form four Physics
Find Electromagnetism examination questions, form four Physics in acaproso.com
| # | Question |
|---|---|
| 1 | State the functions of the hair springs in a moving coil galvanometer. Short answers |
| 2 | Explain why moving coil galvanometer is unsuitable for measuring alternating currents. Short answers |
| 3 | What should be done in order to increase the speed of rotation in a d.c electric motor? Short answers |
| 4 | An electric motor is connected by cable to a generator and produce a current of 10 A at 240 V. Calculate the resistance of the cable. Short answers |
| 5 | Define electromagnetic field. Short answers |
| 6 | Show electromagnetic field lines pattern due to a solenoid. Short answers |
| 7 | With the aid of a well labeled diagram, explain how an electric bell operates. Short answers |
| 8 | How can you make a galvanometer read Short answers |
| 9 | Define magnetic field. Short answers |
| 10 | Name four instruments or devices in which electromagnets are essential parts. Short answers |
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