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प्रश्न
What is electric energy?
टीपा लिहा
उत्तर
It is the total workdone in maintaining an electric current in an electric circuit for a given time.
W = Pt = VIt joule = I2Rt joule.
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Energy and Power in Electrical Circuits
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संबंधित प्रश्न
What is electric power?
Derive the expression for power P = VI in electrical circuit.
Write down the various forms of expression for power in electrical circuit.
Four light bulbs P, Q, R, S are connected in a circuit of unknown arrangement. When each bulb is removed one at a time and replaced, the following behavior is observed.
| P | Q | R | S | |
| P removed | * | on | on | on |
| Q removed | on | * | on | off |
| R removed | off | off | * | off |
| S removed | on | off | on | * |
Draw the circuit diagram for these bulbs.
