Using Electricity And Magnetism

10 Questions | By Patpineda | Updated: Mar 21, 2022 | Attempts: 637

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In chapter 3 of Book N you discovered how electricity is generated. You also studied how electrical energy is used in motors and other devices. Choose the letter which best answers the following questions. Be sure to print out your certificate with your name and bring it to class. Ms. Pati

Questions and Answers

1.

1. The relationship between electricity and magnetism is called
- A.
  
  Electrical energy.
- B.
  
  An electromagnet.
- C.
  
  Electromagnetism.
- D.
  
  Induced current.
2.

2. A coil of wire with a current is called a
- A.
  
  Generator.
- B.
  
  Motor.
- C.
  
  Solenoid.
- D.
  
  Transformer.
3.

3. A magnetic field is always produced by
- A.
  
  Magnets and by electric current.
- B.
  
  A stationary charge.
- C.
  
  Neutral particles.
- D.
  
  A copper wire.
4.

4. Galvanometers are used to measure
- A.
  
  Static electric charge on objects.
- B.
  
  Small currents for gauges.
- C.
  
  Mechanical energy of transformers.
- D.
  
  Magnetic fields of permanent magnets.
5.

5. When a wire coil moves in a magnetic field,
- A.
  
  A current is induced in the wire.
- B.
  
  The strength of the magnetic field increases.
- C.
  
  There is no effect unless the magnet moves also.
- D.
  
  A force causes the wire to rotate.
6.

6. Which of the following uses the mtion in an electric field to produce an electric current?
- A.
  
  A turbine
- B.
  
  A transformer
- C.
  
  A generator
- D.
  
  A commulator
7.

7. The advantage of using alternating current is that it
- A.
  
  Is safer.
- B.
  
  Only requires one wire instead of two.
- C.
  
  Can be easily raised or lowered to a higher or lower voltage.
- D.
  
  Works better for transistors and computers.
8.

8. The voltage in your house is about
- A.
  
  6V
- B.
  
  12V
- C.
  
  120V
- D.
  
  2400V
9.

9. If an electric current reverses, the magnetic field produced by that current
- A.
  
  Remains in the original direction.
- B.
  
  Goes to and stays at zero.
- C.
  
  Also reverses.
- D.
  
  Is perpendicular to the original magnetic field direction.
10.

10. A device that changes the voltage of alternating current is a
- A.
  
  Transformer.
- B.
  
  Motor.
- C.
  
  Generator.
- D.
  
  Galvanometer.