The rate of heat dissipation in an AC circuit with resistance, R, and effective current, Irms, is given by which of the following?

a. 0.5 × (Irms)2R
b. (Irms)2R
c. 2.0 × (Irms)2R
d. 4.0 × (Irms)2R


b

Physics & Space Science

You might also like to view...

Three different bodies-a uniform sphere, a uniform disk, and a hoop-all have same radius and same mass. The body with the largest rotational inertia will be

A. the disk. B. the hoop. C. the sphere. D. none, as all have the same value of rotational inertia.

Physics & Space Science

Which of the following can actually escape a black hole?

A. visible light B. electrons C. very low energy radio waves D. very high energy gamma rays E. None of these choices is correct.

Physics & Space Science

The total amount of power (in watts, for example) that a star radiates into space is called its

A) apparent brightness. B) absolute magnitude. C) luminosity. D) flux.

Physics & Space Science

The greater amount of substance in a solution is generally called the

a. salt. b. solute. c. molar concentrate. d. solvent.

Physics & Space Science