Class 10 Exam > Class 10 Questions > Which of the following terms does not represe...
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Which of the following terms does not represent electrical power in a circuit?
- a)V2/R
- b)I2R
- c)IR2
- d)VI
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which of the following terms does not represent electrical power in a ...
Electric power in terms of current = IR2 and in terms of voltage = V2/R and in terms of voltage and current both = VI
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Most Upvoted Answer
Which of the following terms does not represent electrical power in a ...
In general we refer power as P= V× I ........ and by substituting the value of I from ohm's law it can also be written as P =V× V/ R.......i.e. P=V square/ R.............. or if we substitute the value of V from the ohm's law we will see the equation as P= I × IR.......... i.e. P = I square × R therefore option a) , b) and d) is correct............ but we could not find any relation of power as IR square ......... therefore option c) is incorrect...........
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Community Answer
Which of the following terms does not represent electrical power in a ...
The correct answer is option 'C' - IR^2.
Explanation:
Electric power is the rate at which electrical energy is transferred or consumed in a circuit. It is measured in watts (W) and is calculated using various formulas depending on the given information about the circuit.
Let's break down the given options and analyze them one by one:
a) V^2/R: This formula represents the power (P) in a circuit where V is the voltage across the circuit and R is the resistance. This formula is derived from the equation P = VI, where I is the current flowing through the circuit. Hence, option 'a' correctly represents electrical power in a circuit.
b) I^2R: This formula also represents the power (P) in a circuit where I is the current flowing through the circuit and R is the resistance. This formula is derived from the equation P = VI, where V is the voltage across the circuit. Therefore, option 'b' correctly represents electrical power in a circuit.
c) IR^2: This formula does not represent electrical power in a circuit. It is not a recognized formula for calculating power. The correct formula for power is P = VI or P = V^2/R or P = I^2R. Therefore, option 'c' is incorrect as it does not represent electrical power in a circuit.
d) VI: This formula represents the power (P) in a circuit where V is the voltage across the circuit and I is the current flowing through the circuit. This formula is derived from the equation P = VI. Hence, option 'd' correctly represents electrical power in a circuit.
In summary, option 'C' (IR^2) does not represent electrical power in a circuit. The correct formulas for calculating power are P = VI, P = V^2/R, or P = I^2R.
Explanation:
Electric power is the rate at which electrical energy is transferred or consumed in a circuit. It is measured in watts (W) and is calculated using various formulas depending on the given information about the circuit.
Let's break down the given options and analyze them one by one:
a) V^2/R: This formula represents the power (P) in a circuit where V is the voltage across the circuit and R is the resistance. This formula is derived from the equation P = VI, where I is the current flowing through the circuit. Hence, option 'a' correctly represents electrical power in a circuit.
b) I^2R: This formula also represents the power (P) in a circuit where I is the current flowing through the circuit and R is the resistance. This formula is derived from the equation P = VI, where V is the voltage across the circuit. Therefore, option 'b' correctly represents electrical power in a circuit.
c) IR^2: This formula does not represent electrical power in a circuit. It is not a recognized formula for calculating power. The correct formula for power is P = VI or P = V^2/R or P = I^2R. Therefore, option 'c' is incorrect as it does not represent electrical power in a circuit.
d) VI: This formula represents the power (P) in a circuit where V is the voltage across the circuit and I is the current flowing through the circuit. This formula is derived from the equation P = VI. Hence, option 'd' correctly represents electrical power in a circuit.
In summary, option 'C' (IR^2) does not represent electrical power in a circuit. The correct formulas for calculating power are P = VI, P = V^2/R, or P = I^2R.
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Which of the following terms does not represent electrical power in a circuit?a)V2/Rb)I2Rc)IR2d)VICorrect answer is option 'C'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Which of the following terms does not represent electrical power in a circuit?a)V2/Rb)I2Rc)IR2d)VICorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following terms does not represent electrical power in a circuit?a)V2/Rb)I2Rc)IR2d)VICorrect answer is option 'C'. Can you explain this answer?.
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