Question

Asked Nov 2, 2019

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Find the power delivered to a resistor at t=3 ms if the current entering the resistor is i=5 cos (180t) A and the voltage across the resistors is e=3i V.

Step 1

Power delivered to a resistor can be defined as the product of the current flowing through the resistor and the voltage drop measured across the resistor. This is expressed by equation (1).

Step 2

In this case, the current flowing through the resistor and voltage drop across the resistor are expressed by equation (2) and (3) respectively.

Step 3

Therefore, from equation (1), the power ...

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