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Answer the Questions: 1. What is the power of a 100 V toaster connected to a 12 A outlet? 2. How much work will be

Answer the Questions:

1. What is the power of a 100 V toaster connected to a 12 A outlet?

2. How much work will be done if the toaster in question #2 runs for 20 seconds?

3. Suppose you slowly move a bar magnet near a coil of wire. You then move the bar magnet near the coil of wire twice as fast. How did the current in the wire differ the second time?

4. When you rub a balloon on your hair, the hairs stand on end and separate from each other. Why does this happen?

6. A transformer is given an input voltage of 100 V and contains 50 turns of wire in the primary. How many turns must the secondary contain to give an output of 120 V? What type of transformer is this?

7. Suppose two electrons are sitting 10 cm away from each other. If I move them so that they are now 30 cm away from each other, how much has the force between them decreased?

8. What is the speed of light in diamond (n = 2.42)? Why does the speed of light change when light passes through material that is denser than air?

9. Using Snell's Law: if n2 > n1, what is the relationship between 1 and 2?

10. How does a concave mirror work?

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