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Electromagnetic Induction Quiz

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1. What is the unit of magnetic flux?

2. According to Faraday's Law of Electromagnetic Induction, the induced electromotive force (EMF) in any closed circuit is equal to:

3. What does Lenz's Law state?

4. Which phenomenon is best explained by electromagnetic induction?

5. In an electromagnetic induction experiment, moving a magnet towards a coil induces a voltage in the coil. If the speed at which the magnet is moved towards the coil is doubled, what happens to the induced voltage?

6. A coil is placed near a solenoid carrying an alternating current. Which of the following will result in an increase in the induced electromotive force (EMF) in the coil?

7. For electromagnetic induction to occur in a closed loop wire, what is essential?

8. What would increase the induced current in a wire loop when the magnetic field through the loop is changing?

9. In the context of electromagnetic induction, what role does a ferromagnetic core play when placed inside a coil?

10. Which of the following is a practical application of electromagnetic induction?