Which of the following statements is not true? 1) The average power supplied to an inductor in an AC circuit is proportional to the angular frequency of the power source.
2) By stepping up AC voltage with a transformer, we can transport electricity across large distances with minimal power loss.
3) Voltage and current are in phase across a resistor connected to an AC power source.
4) In AC circuits, RMS stands for Root Mean Square.

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )

To a of 4 x hz is 1. 0. mm nm nm