A student wants to reduce the power consumed by a device without changing the current. Which action will achieve this?
Decrease the resistance in the circuit
Electrical power can be written as P = I2R. If the current I is to be kept constant, power decreases only when the resistance R decreases.
Hence, decreasing the resistance in the circuit reduces power consumption without changing the current.
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Which of the following is a bad conductor of electricity?
In general, in an alternating current circuit
The laws of electromagnetic induction have been used in the construction of a
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