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How much heat energy is produced in 10 second in an electric iron having resistance 440 Ω, when a potential difference of 220 volt is applied across it?
- a)1200 J
- b)600 J
- c)1000 J
- d)1100 J
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
How much heat energy is produced in 10 second in an electric iron havi...
From ohm’s law, I = V/R = 220/440 = 0.5 A
H = I2 × R × t = (0.5)2 × 440 × 10 = 1100 J
Most Upvoted Answer
How much heat energy is produced in 10 second in an electric iron havi...
From ohm’s law, I = V/R = 220/440 = 0.5 A
H = I^2 * R * t = (0.5)^2 * 440 * 10 = 1100 J
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How much heat energy is produced in 10 second in an electric iron havi...
To calculate the amount of heat energy produced in the electric iron, we can use the formula:
Heat energy (Q) = (Current squared) x (Resistance) x Time
In this case, we are given the resistance of the electric iron (440 ohms), the potential difference across it (220 volts), and the time (10 seconds).
We can start by calculating the current flowing through the circuit using Ohm's Law:
Current (I) = Voltage / Resistance
Plugging in the values, we get:
I = 220 V / 440 Ω
I = 0.5 A
Now, we can substitute the values of current, resistance, and time into the formula for heat energy:
Q = (0.5 A)^2 x 440 Ω x 10 s
Q = 0.25 A^2 x 440 Ω x 10 s
Q = 110 J
So, the amount of heat energy produced in 10 seconds in the electric iron is 110 Joules.
Therefore, the correct answer is option D) 1100 J.
Heat energy (Q) = (Current squared) x (Resistance) x Time
In this case, we are given the resistance of the electric iron (440 ohms), the potential difference across it (220 volts), and the time (10 seconds).
We can start by calculating the current flowing through the circuit using Ohm's Law:
Current (I) = Voltage / Resistance
Plugging in the values, we get:
I = 220 V / 440 Ω
I = 0.5 A
Now, we can substitute the values of current, resistance, and time into the formula for heat energy:
Q = (0.5 A)^2 x 440 Ω x 10 s
Q = 0.25 A^2 x 440 Ω x 10 s
Q = 110 J
So, the amount of heat energy produced in 10 seconds in the electric iron is 110 Joules.
Therefore, the correct answer is option D) 1100 J.
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How much heat energy is produced in 10 second in an electric iron having resistance 440 Ω, when a potential difference of 220 volt is applied across it?a)1200 Jb)600 Jc)1000 Jd)1100 JCorrect answer is option 'D'. 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 How much heat energy is produced in 10 second in an electric iron having resistance 440 Ω, when a potential difference of 220 volt is applied across it?a)1200 Jb)600 Jc)1000 Jd)1100 JCorrect answer is option 'D'. 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 How much heat energy is produced in 10 second in an electric iron having resistance 440 Ω, when a potential difference of 220 volt is applied across it?a)1200 Jb)600 Jc)1000 Jd)1100 JCorrect answer is option 'D'. Can you explain this answer?.
How much heat energy is produced in 10 second in an electric iron having resistance 440 Ω, when a potential difference of 220 volt is applied across it?a)1200 Jb)600 Jc)1000 Jd)1100 JCorrect answer is option 'D'. 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 How much heat energy is produced in 10 second in an electric iron having resistance 440 Ω, when a potential difference of 220 volt is applied across it?a)1200 Jb)600 Jc)1000 Jd)1100 JCorrect answer is option 'D'. 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 How much heat energy is produced in 10 second in an electric iron having resistance 440 Ω, when a potential difference of 220 volt is applied across it?a)1200 Jb)600 Jc)1000 Jd)1100 JCorrect answer is option 'D'. Can you explain this answer?.
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