Home  Resources  References  Tubes  Forums  Links  Support  Sale  Search 

Back Next


upon which you are not very clear, read the lesson over again. Your progress in this course will depend to an enormous amount upon your ability to get out of this lesson all there is in it. If you master it thoroughly, the rest of the course will be easy and enjoyable.



TEST QUESTIONS

Number your Answer Sheet 1FR and add your Student Number.
     Never hold up one set of lesson answers until you have another set ready to send in. Send each lesson in by itself before you start on the next lesson.
     In that way we will be able to work together much more closely, you'll get more out of your course, and better lesson service.

  1. What is an electric current?

  2. What is the speed of the electrical disturbance traveling through a wire?

  3. Describe an electromagnet and state some of its common uses.

  4. What is meant by the magnetic field of a magnet?

  5. State two methods that can be used to determine the direction of magnetism about a wire carrying current.

  6. Station ABC broadcasting on a wavelength of 500 meters--on what frequency does it operate?

  7. Why is it possible for Radio waves to penetrate thick walls?

  8. What happens when Radio waves reach the receiving aerial?

  9. What is the purpose of a radio frequency amplifier?

  10. Explain the function of an audio frequency amplifier.



  Back 29 Next  


Content©1931, National Radio Institute
Webpage©1997, Nostalgia Air
Transcriber  Richard Lancaster