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1. The power P delivered to a variable resistor R by a battery of emf V and a constant internal resistance r is given byP= V^2R
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2. asked by Anonymous
3. 512 views
The power P delivered to a load by a current of i amperes through a resistance of 19 ohms, when 110 volts are supplied at one
1. 4 answers
2. asked by Ashley
3. 619 views
The power P delivered to a load by a current of i amperes through a resistance of 19 ohms, when 110 volts are supplied at one
1. 4 answers
2. asked by Ashley
3. 1,174 views
A 120-V motor has mechanical power output of 3.20 hp. It is 81.0% efficient in converting power that it takes in by electrical
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2. asked by iva
3. 1,300 views
A 120-V motor has mechanical power output of 2.20 hp. It is 92.0% efficient in converting power that it takes in by electrical
1. 1 answer
2. asked by priya
3. 931 views
Multiple-Concept Example 9 discusses the physics principles used in this problem. Three resistors, 2.2, 3.9, and 6.4 Ω, are
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2. asked by ali-1
3. 840 views
A 120-V motor has mechanical power output of 2.00 hp. It is 82.0% efficient in converting power that it takes in by electrical
1. 2 answers
2. asked by Jessi
3. 1,846 views
The equation P=240I-8I^2 represents the power, P, (in watts) of a 240 volt circuit with a resistance of 8 ohms when a current of
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2. asked by Shirley
3. 621 views
Three resistors, 1.17, 2.66, and 4.73Ω, are connected in series across a 13.4-V battery. Find the power delivered to each
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2. asked by Coco
3. 438 views
Three resistors, 1.17, 2.84, and 3.65Ω, are connected in series across a 20.3-V battery. Find the power delivered to each
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2. asked by Anonymous
3. 942 views