Measurements taken on various resistors are shown below. For each, calculate the power dissipated in the resistor and the power rating necessary for safe operation using standard components with power ratings of 1/8 W, 1/4 W, 1/2 W, 1 W, or 2 W: A. 1k ohm conducting 30 mA. B. 1K ohm conducting 40mA. C. 10k ohm conducting 3mA. D. 1k ohm dropping 20V and 11V.