Work, Power & Energy – Notes – 1 – 1

1. Power is the rate at which energy is delivered to a circuit.

2. Power is also the rate at which energy (heat) is dissipated by the resistance in a circuit.

3. Power is measured in watts.

4. Power is the product of current and voltage :

P = IE

5. The total power dissipated in a series or parallel circuit is equal to the sum of the power dissipated by the individual components.

PT = P1 + P2 + P3 …… Pn

Work, Power & Energy – Mcq
Work, Power & Energy – Notes
Work, Power & Energy – IQ

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