Which of the following methods can be used to increase the magnitude of the induced potential difference produced in a coil due to a change in magnetic field?
(i) Increasing the number of turns in the coil
(ii) Increasing the strength of the magnetic field
(iii) Increasing the resistance of the coil wire
1
Only (ii)
2
Only (i)
3
(i) and (iii) both
4
(i) and (ii) both