Question

Question 17 Use the sliding scale on the battery to change the voltage. How does changing the voltage influence the magnetic field? a Increasing the voltage, does not change the magnetic field b Increasing the voltage, increases the magnetic field c Increasing the voltage, decreases the magnetic field

Answer 1

The correct answer is **b: Increasing the voltage increases the magnetic field.**

When the voltage supplied to an electromagnet (or a coil of wire) is increased, it results in a higher current flowing through the wire. According to Ampere's Law, the strength of the magnetic field produced by the current in the wire is directly related to the amount of current. Thus, as you increase the voltage (and consequently the current), the magnetic field intensity also increases.