The output voltage of an AC generator is given by Av = (130 V)sin(407t). The generator is connected across a 17.0- resistor. (a) By inspection, what is the maximum voltage? (b) By inspection, what is the frequency? Hz (c) Find the rms voltage across the resistor. (d) Find the rms current in the resistor. A (e) Find the maximum current in the resistor. A (f) Find the power delivered to the resistor. W (g) Find the current when t = 0.0050 s. (h) Should the argument of the sine function be in degrees or radians? O The argument of the sine function should be in degrees. O The argument of the sine function should be in radians.

An ac generator supplies an rms voltage of 6.50 V to an RC circuit. At a frequency of 15.3 kHz the rms current in the circuit is 43.7 mA ; at a frequency of 27.3 kHz the rms current is 50.2 mA . A.) What is the value of R in this circuit? B.) What is the value of C in this circuit?

A capacitor is connected across the terminals of an ac generator that has a frequency of 490 Hz and supplies a voltage of 39 V. When a second capacitor is connected in parallel with the first one, the current from the generator increases by 0.18 A. Find the capacitance of the second capacitor. Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise. Number 1 a pag Jadi Units

A) 0.82 MU B) 0.3 fe 66. A 35-µF capacitor is connected to an ac source of emf with a frequency of 250 Hz and a maximum emf of 20 V. If the voltage across the capacitor is zero at time = 0, what is the voltage at time = 3.0 ms? Assume the phase constant is zero. A)-20 V B)-10 V C) 0 V D) 10 V E) 20 V 75. An electron in a hydrogen atom moves in a circle of radius 1.1 x 10-10 m at a speed of about 1.6 x 106 m/s. What is the magnetic dipole moment of this electron due to its orbital motion? A) 9.3 x 10-24 J/T B) 1.4 x 10-23 J/T C) 1.9 x 10-23 J/T D) 2.8 x 10-23 J/T

A 2.04 kN resistor is connected to an AC voltage source with an rms voltage of 230 V. HINT (a) What is the maximum potential difference across the resistor (in V)? V (b) What is the maximum current through the resistor (in A)? A (c) What is the rms current through the resistor (in A)? A (d) What is the average power dissipated by the resistor (in W)?

A resistor and capacitor are connected in series across an ac generator. The voltage of the generator is given by V(t) = Vo cos(wt), where Vo What is the magnitude of the impedance of the RC circuit? (b) What is the amplitude of the current through the resistor? (c) What is the phase difference between the voltage and current? 120 V, w = 120T rad/s, R = 600N, and C = 4.5µF. (a) Hint a. The magnitude of the impedance is Ω. b. The amplitude of the current through the resistor is mA. c. The phase difference between the voltage and current is rad. (Take the positive phase difference to mean that voltage is leading the current by this phase difference.)