An AC generator with an rms voltage of 12.0 V is connected in series with a 0.60-H inductor. The frequency of the source voltage is 50.0 Hz. (a) What is the inductive reactance of the circuit? (b) What is the rms current in the circuit?(c) What is the maximum value of the current in the circuit?(d) Write an expression for the potential difference across the inductor as a function of time.

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.