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Tutorial ID | Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions | |
---|---|---|---|---|---|---|
15.6 | Electric Power and Efficiency |
1. The power produced by the battery in figure 1 is P1. The power produced by the battery in figure 2 is P2. What is the ratio
Correct Answer: D
2. What is the power rating of the lamp M in watts?
Correct Answer: B
3. What is the energy in kWh consumed in one hour by a 20 Ω resistor connected to a 220 V electric source?
Correct Answer: D
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