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Answer to Question #50351 in Electric Circuits for lizan
Question #50351
You are required to specify the power rating of a resistor, R1, to be used in a car engine management system, so that an order can be placed for the component (resistor).
The resistance required is 2Ω. The maximum current that will be flowing in the resistor will be 10A.
This resistor is only available in the following power ratings - Choose the most appropriate power rating for this resistor for the given application.
1. 2W
2. 20W
3. 120W
4. 250W
The resistance required is 2Ω. The maximum current that will be flowing in the resistor will be 10A.
This resistor is only available in the following power ratings - Choose the most appropriate power rating for this resistor for the given application.
1. 2W
2. 20W
3. 120W
4. 250W
Expert's answer
Solution:
Givem:
I=10A
R=2Ohm
P=R*I^2 = 2*10^2 = 200 W
So in our case 120W is best variant
Answer 3
Givem:
I=10A
R=2Ohm
P=R*I^2 = 2*10^2 = 200 W
So in our case 120W is best variant
Answer 3
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