Physics for IGCSE & O level - Magnets And Currents (Section 9 - No. 37)
Which of the following is NOT a method to increase the e.m.f. induced in a coil?
Using a stronger magnet.
Moving the magnet more quickly.
Increasing the number of turns on the coil.
Decreasing the area of the coil.
Објашњење
Decreasing the area reduces e.m.f.