(a) Explain why a voltage is induced (b) State one way to increase this voltage
Answers
When a magnet is moved into a coil of wire, changing the magnetic field and magnetic flux through the coil, a voltage will be generated in the coil according to Faraday's Law. ... The polarity of the induced emf is such that it produces a current whose magnetic field opposes the change that produces it.
The alternating current running through the coil creates a magnetic field in and around the coil that is increasing and decreasing as the current changes. ... Increasing the number of turns or the rate of change of magnetic flux increases the amount of induced voltage.
Answer:
Explanation:
The induced voltage produces an induced current if the conductor is connected in a complete circuit. As with all currents, the induced current creates a magnetic field around itself. ... For example, if a magnet is moved into a coil of wire, the induced magnetic field tends to repel the magnet back out of the coil.