A resistor and capacitor are connected in series across an ac generator. The voltage of the generator is given by V(t) = Vocos(wt), where Vo = 120V, w = 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? 120T rad/s, R = 450N, and C = 1µF. (a) What is the The magnitude of the impedance is Ω. The amplitude of the current through the resistor is mA. 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. If there are multiple possible values, enter the largest one).

A transformer has a primary coil with 125 turns of wire and a secondary coil with 625 turns. An AC power supply connected across the primary coil has a voltage given by the function  Δv = (160 V)sin(?t).  What rms voltage (in V) is measured across the secondary coil?

A transformer has a primary coil with 225 turns of wire and a secondary coil with 1,800 turns. An AC power supply connected across the primary coil has a voltage given by the function  Δv = (180 V)sin(ωt).  What rms voltage (in V) is measured across the secondary coil?

An AC circuit has an rms current of 1.9 A, and an rms EMF of 7.1 V. What is the amount of average power (in watts) in this circuit if the power factor is 0.18?

A capacitor is connected across the terminals of an ac generator that has a frequency of 360 Hz and supplies a voltage of 34 V. When a second capacitor is connected in parallel with the first one, the current from the generator increases by 0.30 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.

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 120 V, w = 120m rad/s, R= 6000, and C= 6μF. (a) 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? Hint a. The magnitude of the impedance is b. The amplitude of the current through the resistor is 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.) Submit Question Q. mA, MacBook Pro

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.)

A capacitor (capacitance C₁) is connected across the terminals of an ac generator. Without changing the voltage or frequency of the generator, a second capacitor (capacitance C2) is added in series with the first one. As a result, the current delivered by the generator decreases by a factor of 5.00. Suppose the second capacitor had been added in parallel with the first one, instead of in series. By what factor would the current delivered by the generator have increased? Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise.

A circuit consists of a 3.38-μF and a 6.98-μF capacitor connected in series across the terminals of a 617-Hz generator. The voltage of the generator is 120 V. (a) Determine the equivalent capacitance of the two capacitors. (b) Find the current in the circuit. Note: The ac current and voltage are rms values and power is an average value unless indicated otherwise. (a) Number i Units (b) Number i Units

An inductor with inductance L is connected to an AC source.  If the AC source provides a voltage VL(t) = V0cos(omegat), what is the current IL through the inductor as a function of time?  Use the cosine function.