Consider an ac circuit consisting of a power supply and a resistor. if the current in the circuit at time t is /, then the power delivered to the resistor is /, where r is the resistance. express the power in terms of .

Option B. is the answer.

Step-by-step explanation:

The given question is incomplete; complete question has been given in the picture attached.

Current in the circuit at the time t is .

Power delivered to the resistor is

Where R = resistance

We have to express the power in the terms of cos2w.

Since formula to get the power in a circuit with resistance R and current I is given by

P = I²R

Therefore, power for the given circuit will be

P =

P = [Since sin²t = ]

P =

Therefore, Option B. will be the answer.

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

answer by jkismyhusbandbae:

a) how close a measured value is to the actual (true) value.

  measure of length.   there are 12 inches in a foot, and 36 inches in a yard.   one inch is exactly 2.54 centimeters.

accuracy is how close something is to an actual answer but it is not exactly correct.