E: In an A. C. circuit, the flowing current is i = 5 sin (100 t - π/2) A and the potential difference is V = 200 sin (100 t)V. The power consumption is equal to

A parallel plat capacitor is being charged by a battery of Ɛ = 12 V. If the total resistance of the circuit is 5.0 k2, and if the time constant for this circuit is 7= 95 ms (milliseconds), then: 1. What is the capacitance, C, of the capacitor? а) b) What is electric charge on the capacitor (as a function of time)? c) What is the current in the circuit (as a function of time)? d) If the capacitor plates are circular and the separation distance is d = 0.8 mm, calculate the E field value between the plates of the capacitor (as a function of time). e) Calculate the B field value and directions, between the plates of the capacitor (as a function of time), at a distance r from the center of plates.

Initially, for the circuit shown, the switch S is open and the capacitor is uncharged. The switch S is closed at time t = 0. In the figure shown, when the time t is equal to 8.0 s, the charge on the capacitor (in mC), is closest to: a. 4.06 b. 13.2 c. 0.23 d. 2.26 e. 1.33 70 V L www 0.20 ΜΩ 90 μF

In the circuit below R1 = 33 Ω, R2 = 64 Ω, R3 = 118 Ω, and V = 95 V. What is the magnitude of the voltage drop across the R2 resistor?