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1. A charge of 1020 C was passed through a wire in 5.5 min. What was the average electric current during that interval?

2. How long does it take for 67 C to pass a given point in a wire that carries an electric current of 0.80 A?

3. What is the potential difference across a 220 ohm resistor when a current of 3.50 A flow through it?

4. A piece of Nichrome wire passes a current of 0.853 A when a potential of 1.64 V is applied. What is the resistance of the wire?

5. Calculate the resistance of a piece of 20-gauge copper wire 2.00 m long. The cross-sectional area of 20-gauge wire is 0.5176 mm^2.

6. Compute the resistances of 18-gauge and 16-gauge copper wires of 5.00 m long. The cross-sectional area of 18 gauge wire is 0.8231 mm^2, and that of 16 gauge wire is 1.309 mm^2.

7. A flashlight lamp connected to battery that provides 1.4 V draws a current of 0.10 A. What electric power is used by the lamp?

8. A 150-W street lamp is operated for 12 hours a day. How much energy does it take to operate the lamp for 30 days? Express your answer in kilowatt-hours and in joules.

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