An electric bulb has marking 110V, 100W on it.
(a) How much energy is used per second by this bulb ?
(b) What is the resistance of this electric bulb
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Need to FinD :-
- The energy is used per second by this bulb .
- The resistance of this electric bulb.
The given marking of the bulb is 110V ,100W . We know the rate of doing work is called Power or simply the rate by which energy is consumed is called power . Here 100W is the power of the bulb .
- It means 100J of energy is consumed by the bulb in 1 sec .
- Therefore answer of first question is 100J .
We know that ,
- Here the voltage of the bulb is 110V , and the power is 100W . On substituting the respective values we have ,
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