Cards in this guide (12)
How can transistors act as amplifiers or switches
by creating two circuit loops
What types of magnets are easy to magnetize but lose magnetism quickly
Which of these is used to measure potential difference in parallel circuits
Which of these is not a type of signal used to send information through electricity
In which type of waves do the particles in a medium vibrate in the same direction the wave is moving
Why are temporary magnets so useful
magnetic feilds are produced only when current is flowing
Electricity is one of two aspects of which fundamental force
Why do you use digital signals
Which of the following is true of sound waves
sound waves require a medium to transfer energy
FOR A+ USERS THE ANSWER IS Sound waves travel in all directions
sound waves require a medium to transfer energy
-- They are longitudinal waves and material medium is required for their propagation.
What is up these is not a material commonly found in magnets
Which of the following is true of the relationship bettween frequency and wavelength
Which of these would you expect to make a good insulator