I am currently working on a personal project where I am investigating Electromagnetic Induction.
My set up includes two loops - one primary and one secondary. The primary loop is hooked up to a Transistor which converts the DC output of a 9V battery in AC. This is also hooked up to a 33k Ohm resistor.
The secondary coil is hooked up first to a bulb to test whether the circuit is functioning and then it connected to a Multimeter to measure induced voltage in the secondary coil.
My setup works as the bulb has lit up on each attempt. However the problem arises as I increase the number of coils on the secondary loop. The induced maximum voltage induced rises as I increase the number of coils on the secondary. However, if I increase the number of coils above a certain number, the induced maximum voltage stays the same and doesn't increase.
My question is why does this happen?