Generating Electricity Quiz
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5 questions, one answer each
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1. What causes a pd to be induced across a conductor in the generator effect?
- A. The conductor being heated
- B. The conductor moving relative to a magnetic field, or being in a changing magnetic field
- C. A steady, unchanging magnetic field around a stationary conductor
- D. Passing a direct current through the conductor
2. Which generator produces alternating current?
- A. Dynamo
- B. Alternator
- C. Transformer
- D. Solenoid
3. Which of the following would increase the size of an induced pd?
- A. Moving the magnet more slowly
- B. Using fewer turns on the coil
- C. Using a stronger magnet
- D. Using a smaller coil area
4. What happens to the induced current if the direction of motion of the magnet is reversed?
- A. Nothing changes
- B. The current stops flowing entirely
- C. The direction of the induced current reverses
- D. The current becomes direct current
5. A student moves a bar magnet into a coil connected in a complete circuit and observes a momentary current. Which change would produce the largest induced pd?
- A. Moving the same magnet into the coil more slowly
- B. Using a weaker magnet moved at the same speed
- C. Moving a stronger magnet into the coil more quickly, through a coil with more turns
- D. Removing the magnet from near the coil entirely