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What is the formula for the average power consumed in an AC circuit with a resis
What is the formula for the average power consumed in an AC circuit with a resistor? (2019)
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Practice Questions
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What is the formula for the average power consumed in an AC circuit with a resistor? (2019)
P = VI
P = V²/R
P = I²R
All of the above
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The average power consumed in an AC circuit can be expressed as P = VI, P = V²/R, and P = I²R.
Questions & Step-by-step Solutions
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Q
Q: What is the formula for the average power consumed in an AC circuit with a resistor? (2019)
Solution:
The average power consumed in an AC circuit can be expressed as P = VI, P = V²/R, and P = I²R.
Steps: 6
Show Steps
Step 1: Understand that power in an electrical circuit is the rate at which energy is used or consumed.
Step 2: In an AC circuit with a resistor, the average power can be calculated using different formulas.
Step 3: The first formula is P = VI, where P is power, V is voltage, and I is current.
Step 4: The second formula is P = V²/R, where V is the voltage across the resistor and R is the resistance.
Step 5: The third formula is P = I²R, where I is the current flowing through the resistor and R is the resistance.
Step 6: Choose any of these formulas based on the information you have (voltage, current, or resistance) to calculate the average power.
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