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Block: Date: Homework # 21 - Current Handout Problems: 1. A current of 0.20 A is kept flowing in a wire by a 10-V battery

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Block: Date: Homework # 21 - Current Handout Problems: 1. A current of 0.20 A is kept flowing in a wire by a 10-V battery for 5.0 s. (a) What power is supplied to the wire? (b) How much electrical energy has been delivered to the wire? 2. A 110-V motor draws 0.50 A of current. (a) What power is being supplied to the motor? (b) How much work does this motor do in 10 seconds? (Assume all the electrical energy is converted to mechanical work). 3. A 200-V generator powers an electric heater. (a) How much work is done on each coulomb of charge moved through the heater? (b) How much work in joules is done on each electron moved through the heater? 4. A 60-W lamp is operating on a 120-V line. (a) How much current passes through the lamp? (b) How many electrons pass through the lamp in 4.0 s

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