An AC voltage source, with a peak output of 200 V, is connected to a 25-W resistor. What is the rate of energy dissipated due to heat in the resistor?

a. 566 W
c. 800 W
b. 400 W
d. 200 W


C

Physics & Space Science

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Halley's Comet returns about every ______________ years

Fill in the blank(s) with correct word

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Which of the following elements is the physical basis of life on Earth?

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A circular coil (radius = 0.25 m) has 143 turns and is in a uniform magnetic field. If the orientation of the coil is varied through all possible positions, the maximum torque on the coil by magnetic forces is 0.29 N?m when the current in the coil is 2.7 mA. What is the magnitude of the magnetic field?

a. 5.47 T b. 0.304 T c. 3.83 T d. 137 T

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