Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What is the purpose of using a solenoid instead of a permanent magnet to generate an external field?
What is the purpose of using a solenoid instead of a permanent magnet to generate an external field?
- To reduce the area of the loop
- To stop the current flow in the loop
- To produce a constant magnetic field
- To change the magnitude of the external field by varying the supplied current (correct)
What type of electric current is required to continually change the magnetic field with time?
What type of electric current is required to continually change the magnetic field with time?
- Direct current (DC)
- Static current
- Pulsating current
- Alternating current (AC) (correct)
What is the condition for wireless induction to occur between two solenoids?
What is the condition for wireless induction to occur between two solenoids?
- Only one solenoid needs to be supplied with an electric current (correct)
- The solenoids must be made of the same material
- Both solenoids must be touching
- Both solenoids must be supplied with an electric current
What is the relationship between the magnetic field and the current in the solenoid?
What is the relationship between the magnetic field and the current in the solenoid?
Signup and view all the answers
What is the result of powering a solenoid with alternating current (AC)?
What is the result of powering a solenoid with alternating current (AC)?
Signup and view all the answers
Flashcards are hidden until you start studying
