Homework Answers
When Vs is the supply voltage in RC circuit current leads the supply voltage. Because Capacitor always draws a current which leads the supply voltage because of its reactive nature
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Question 12 For a RC circuit, which of the following statement is true when Vs is...
The time, in seconds, for the current through a 870-ohm resistor in an RC circuit, with...
The time, in seconds, for the current through a 870-ohm resistor in an RC circuit, with an initially uncharged 4.24-mF capacitor, to fall to -37% of its maximum value is Add your answer Question 3 7.14 Points The time for the current in the resistor of an RL circuit, in units of ms, to reach -63% of its final value with a 705 resistor and a 84.7 mH inductor is Add your answer For an AC voltage source powering a...
1. Using circuit 3-1, calculate the total current (which is also the capacitor current and resistor...
1. Using circuit 3-1, calculate the total current (which is also
the capacitor current and resistor current) by using Ohm’s Law. To
do this, you must first compute the total impedance of the circuit,
in polar form. Also, remember that Vs (source voltage) phase shift
is 0 degrees. Write your answer in polar form.
2. Compute the voltage across the capacitor (C1), using Ohm’s
Law and your result from #1. Write your answer in polar form.
3. In a series...
The RLC circuit below is being driven by an AC source with a frequency of 47.77...
The RLC circuit below is being driven by an AC source with a
frequency of 47.77 Hz resulting in a maximum current Imax = 0.25
amps.
24) In this circuit, the voltage
across the capacitor __________ the current through the capacitor
and the voltage across the resistor __________ the current through
the resistor.
leads, lags
leads, leads
lags, leads
lags, lags
lags, is in phase with
is in phase with, leads
Totally unrelated question....
25) A local radio station broadcasts
at the...
"O OHLEI E PICS! 3. An RC-Circuit is made up of a 12 kO resistor, a...
"O OHLEI E PICS! 3. An RC-Circuit is made up of a 12 kO resistor, a 40 uF capacitor and a 9.0 V battery. The battery is used to charge the capacitor, and then it is removed from the circuit through the use of a switch, allowing the capacitor to discharge. a. (3 pts.) What is the time constant of the circuit? b. 17 pts.) Calculate the voltage across the capacitor, voltage across the resistor, and the current in the...
which one of the following statements concerning an ac circuit is true
which one of the following statements concerning an ac circuit is true? a) when only resistance is present in an ac circuit, voltage and current are in phase. b) on average, the power dissipated by resistor in an ac circuit is zero. c) for a resistor in an ac cicuit, the current and voltage are 90 degree out of phase. d) the current and voltage are in phase for a capacitor in an ac circuit. e) inductors in an ac...
An RC circuit is connected across a DC voltage source through an open switch. The switch...
An RC circuit is connected across a DC voltage source through an open switch. The switch is closed at t = 0 s. Which of the following is a correct statement regarding the circuit? The capacitor charges to its maximum value in one time constant. The resistor and the capacitor share the applied voltage equally as a function of time. The current flows through the circuit even after the capacitor is fully charged. Once the capacitor is fully charged, there...
A pure capacitor is connected to an AC power supply. In this circuit, the current: Leads...
A pure capacitor is connected to an AC power supply. In this circuit, the current: Leads the voltage by 90 degrees None of the answers are correct Lags the voltage by 180 degrees Lags the voltage by 90 degrees Is in phase with the voltage
8–31 A voltage vs(t) = 50 cos (5000t) V is applied to the circuit in Figure...
8–31 A voltage vs(t) = 50 cos (5000t) V is applied to the circuit in Figure P8–31. (a) Convert the circuit into the phasor domain. (b) Find the phasor current flowing through the circuit and the phasor voltages across the inductor and the resistor. (c) Plot all three phasors from (b) on a phasor diagram. Describe if the current leads or lags the inductor voltage. i(t) 50 22 25 mH 00 + VL(t) - + Vr(t)- vs(t) (+) FIGURE P8-31
D Question 5 1 pts A capacitor Cis in an RC circuit with an initial charge...
D Question 5 1 pts A capacitor Cis in an RC circuit with an initial charge Qo. When the circuit is closed, the energy dissipated in the resistor is used to heat a material of specific heat cp and mass m, with an efficiency e. Assuming that the material is thermally isolated from everything except the resistor and that the heat capacity of the resistor is negligible compared with the material, what is the change in temperature of the material...
Construct a RC circuit (series) with a capacitor, a resistor, a battery,
Part A Charging of RC Circuit 1) Construct a RC circuit (series) with a capacitor, a resistor, a battery, two switches, and appropriate meters that will enable you to make measurements of the parameters for charging up the capacitor. The placement of the switches allows you to measure both charging and discharging of the RC circuit. See diagram below: 2) Choose a combination of Rand C that will give you a time constant(T) of 20 seconds. T=R*C 20= 100* C=0.2F 3) Set the...
The time, in seconds, for the current through a 870-ohm resistor in an RC circuit, with an initially uncharged 4.24-mF capacitor, to fall to -37% of its maximum value is Add your answer Question 3 7.14 Points The time for the current in the resistor of an RL circuit, in units of ms, to reach -63% of its final value with a 705 resistor and a 84.7 mH inductor is Add your answer For an AC voltage source powering a...
1. Using circuit 3-1, calculate the total current (which is also
the capacitor current and resistor current) by using Ohm’s Law. To
do this, you must first compute the total impedance of the circuit,
in polar form. Also, remember that Vs (source voltage) phase shift
is 0 degrees. Write your answer in polar form.
2. Compute the voltage across the capacitor (C1), using Ohm’s
Law and your result from #1. Write your answer in polar form.
3. In a series...
The RLC circuit below is being driven by an AC source with a
frequency of 47.77 Hz resulting in a maximum current Imax = 0.25
amps.
24) In this circuit, the voltage
across the capacitor __________ the current through the capacitor
and the voltage across the resistor __________ the current through
the resistor.
leads, lags
leads, leads
lags, leads
lags, lags
lags, is in phase with
is in phase with, leads
Totally unrelated question....
25) A local radio station broadcasts
at the...
"O OHLEI E PICS! 3. An RC-Circuit is made up of a 12 kO resistor, a 40 uF capacitor and a 9.0 V battery. The battery is used to charge the capacitor, and then it is removed from the circuit through the use of a switch, allowing the capacitor to discharge. a. (3 pts.) What is the time constant of the circuit? b. 17 pts.) Calculate the voltage across the capacitor, voltage across the resistor, and the current in the...
8–31 A voltage vs(t) = 50 cos (5000t) V is applied to the circuit in Figure P8–31. (a) Convert the circuit into the phasor domain. (b) Find the phasor current flowing through the circuit and the phasor voltages across the inductor and the resistor. (c) Plot all three phasors from (b) on a phasor diagram. Describe if the current leads or lags the inductor voltage. i(t) 50 22 25 mH 00 + VL(t) - + Vr(t)- vs(t) (+) FIGURE P8-31
D Question 5 1 pts A capacitor Cis in an RC circuit with an initial charge Qo. When the circuit is closed, the energy dissipated in the resistor is used to heat a material of specific heat cp and mass m, with an efficiency e. Assuming that the material is thermally isolated from everything except the resistor and that the heat capacity of the resistor is negligible compared with the material, what is the change in temperature of the material...
Part A Charging of RC Circuit 1) Construct a RC circuit (series) with a capacitor, a resistor, a battery, two switches, and appropriate meters that will enable you to make measurements of the parameters for charging up the capacitor. The placement of the switches allows you to measure both charging and discharging of the RC circuit. See diagram below: 2) Choose a combination of Rand C that will give you a time constant(T) of 20 seconds. T=R*C 20= 100* C=0.2F 3) Set the...
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