Practice test : current electricity and magnetism

 


Practice Test: Current Electricity and Magnetism

Practice Test: Current Electricity and Magnetism

1. What is the SI unit of electric current?

2. The resistance of a conductor is affected by:

3. What type of charge is carried by electrons?

4. Ohm’s law is represented by which equation?

5. Which of the following is a source of direct current (DC)?

6. A magnetic field can be created by:

7. Which device is used to measure electric current?

8. Magnetic field lines outside a bar magnet run from:

9. In an electric circuit, the device used to control current is:

10. An electric current through a metallic conductor produces:


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