Question

1. identify what are two factors that determine the size of the electric current induced?

Explanation:

Faraday's law of electromagnetic induction states that the induced electromotive force (emf) in a coil is proportional to the rate of change of magnetic flux through the coil. The induced current \(I=\frac{\mathcal{E}}{R}\) (where \(\mathcal{E}\) is the induced emf and \(R\) is the resistance of the circuit). The rate of change of magnetic flux (\(\frac{\Delta\Phi}{\Delta t}\), which is related to how fast a magnet moves relative to a coil or vice - versa) affects the induced emf. Also, the resistance \(R\) of the circuit (including the coil's resistance and any external resistors) affects the current as per Ohm's law \(I = \frac{\mathcal{E}}{R}\).

Answer:

The two factors are the rate of change of magnetic flux (related to the motion of the magnet or coil) and the resistance of the circuit.