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ELET 131 Homework 2

Use Word to process your homework and submit a printed hard copy is preferred.

1. (15 points) What is the voltage between two points if 1.2 J of energy are required to move 0.4 mC between the two points?

Hint: V=W / Q

2. (15 points) How much charge passed through a radio battery of 9 V if the energy expanded is 72 J?

Hint: Q=W / V

3. (15 points) If 312 C of charge pass through a wire in 2 min, find the current in amperes.

Hint: I=Q / t

4. (15 points) If the current in a conductor is constant at 2 mA, how much time is required for 6 mC to pass through the conductor?

5. (10 points) What current will a battery with an Ah rating of 200 theoretically provide for 40 h?

6. (10 points) For how many hours will a battery with an Ah rating of 32 theoretically provide a current of 1.28 A?

7. (10 points) What are the significant differences in the way ammeters and voltmeters are connected?

8. (10 points) What is a semiconductor? Typically, how many electrons in the outermost valence ring of semiconductor materials?

Use Word to process your homework and submit a printed hard copy is preferred.

1. (15 points) What is the voltage between two points if 1.2 J of energy are required to move 0.4 mC between the two points?

Hint: V=W / Q

2. (15 points) How much charge passed through a radio battery of 9 V if the energy expanded is 72 J?

Hint: Q=W / V

3. (15 points) If 312 C of charge pass through a wire in 2 min, find the current in amperes.

Hint: I=Q / t

4. (15 points) If the current in a conductor is constant at 2 mA, how much time is required for 6 mC to pass through the conductor?

5. (10 points) What current will a battery with an Ah rating of 200 theoretically provide for 40 h?

6. (10 points) For how many hours will a battery with an Ah rating of 32 theoretically provide a current of 1.28 A?

7. (10 points) What are the significant differences in the way ammeters and voltmeters are connected?

8. (10 points) What is a semiconductor? Typically, how many electrons in the outermost valence ring of semiconductor materials?