Which of the following is the correct relation between electric power (P) of an appliance, electrical energy consumed (E ) by the appliance and time (t) for which the appliance is used ?
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A.
P = E/t²
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B.
P = E²t
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C.
P = E/t
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D.
P = Et
Correct Answer:
C. P = E/t
Explanation:
Electric power (P) is defined as the rate at which electrical energy (E) is consumed or transferred over a specific period of time (t). Mathematically, this relationship is expressed by the formula P = E/t. This indicates that power is directly proportional to the total energy used and inversely proportional to the time duration of its use. Therefore, the correct relation among the given options is P = E/t.
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