Which of the following modifications to the experiment would

Which of the following modifications to the experiment would increase the size of the induced pulse on the FFTScope screen: - more turns on outer coils? - more turns on inner coils? - smaller coil moved outside larger coil? - larger diameter outer coils? - stronger hand-held magnet?

Solution

For the cases, Increasing coil diameter and number of turns will provide more area hence more inductance will appear on the coils. This is due to proportional relation of inductance with the area. Similarly, strong hand held magnet will increase magnetic field strength and induce higher induction due to Faradey\'s Law. Moving smaller coil outside larger coil will decrease induced pulse because of lesser available area for induction.