A freezer of resistance 10Ω is connected to a 110-V source. What is the power delivered when this freezer is on?
Answer to relevant QuestionsThe current in a refrigerator with a resistance of 12 Ω is 13 A (when the refrigerator is on). What is the power delivered to the refrigerator? An ohmic resistor in a circuit is designed to operate at 120 V. (a) If you connect the resistor to a 60-V power source, will the resistor dissipate heat at (1) 2, (2) 4, (3) ½, or (4) ¼ times the designed power? Why? (b) ...Two resistors, 100 Ω and 25kΩ, are rated for a maximum power output of 1.5 W and 0.25 W, respectively. (a) What is the maximum voltage that can be safely applied to each resistor? (b) What is the maximum current that ...A lightbulb’s output is 60 W when it operates at 120 V. If the voltage is cut in half and the power dropped to 20 W during a brownout, what is the ratio of the bulb’s resistance at full power to its resistance during the ...Most modern TVs have an “instant warm-up” feature. Even though the set appears to be off, it is “off” only in that there is no picture and audio. To provide a “quick on” feature, the TV’s electronics are kept ...
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