Power Dissipation
Easyphysics
Power dissipated in resistor is:
Select the correct option:
Solution
Incorrect! Answer:
P=I2R
The power (P) dissipated as heat in a resistor follows Joule's law of heating: P=V⋅I Substituting V=IR (Ohm's Law): P=(IR)⋅I=I2R Substituting I=V/R: P=V⋅(V/R)=RV2.
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About This Question
- Subject
- physics
- Chapter
- current electricity
- Topic
- power dissipation
- Difficulty
- Easy
- Year
- 2025
This easy difficulty physics question is from the chapter current electricity, covering the topic of power dissipation. It appeared in the 2025 exam. Practice this and similar questions to strengthen your understanding of current electricity concepts.
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