1) The value of V0 = 120 V
2) The time at which the voltage reaches half of its initial value i.e 60 V = 4 s
3)
Taking natural logarithm on both sides:
4) We know
Problem 4 Capacitor Voltage (V) vs Time (s) 140 120 100 e 80 60 40 20...
3 Capacitor Discharging Current The capacitor voltage versus time in a discharging series RC circuit, as shown in the Background Information Figure 2, is Vo(t) = V, expl-Roc), +20 (3) where V, is the source voltage in Volts, exp(x) is the exponential functione, Rp is the discharging resistance in Ohms (N), C is the capacitance in Farads. To = Rp is the discharging time constant in seconds. Derive an expression for the capacitor discharging current versus time, .(t), in terms...
Resistor - 100 mega-ohms capacitor - .47 micro farads i am having an extremely hard time finding the theoretical time constant and the experimental ones. Format Painter 龘· . ▼ 窖三三一嚚 Merge & Center s-90 , Clipboard Font Alignment Number 0 2.81 7.8 15.4 25.76 0 0.5 1 1.5 Charging a Capacitor 38.732.5 2 54.95 74.26 97.67 124.45 156.24 193.33 235.43 284.47 3.5 4 4.5 5.5 50 100 150 Time (s) 6.5 seconds voltage seconds voltage 10 9.5 Discharging a...
8. Capacitance in circuits, RC circuits When a voltage source Vo is applied to a capacitor in a circuit which has a resistance R, a charge Q CV will build up across the capacitor. This does not happen instantaneously, but takes some time. The charge builds up exponentially with a characteristic time r = RC. Charging: V = v. 1 - e-t/RC) Discharging: Vc = V e-t/RC Page 2 of 3 When t = RC , the exponential is lle,...
Part A Constants A capacitor is charged to a potential of 12.0 V and is then connected to a voltmeter having an internal resistance of 3.50 M2. After a time of 3.90 s the voltmeter reads 2.8 V. What is the capacitance? 0 AEO O ? You may want to review (Pages 862-866). C- For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Discharging a capacitor. Submit Request Answer Part B What is...
These are my measurements. This is for physics its a RC LAB. The purpose is that for a discharging capacitor we measure voltage and from this we determine the capacitance. Also from thee measured capacitance we can find thee internal resistance of the voltmeter 1)measurements over resistor T(time every 10 seconds Voltage(V) 1 5 2 4 3 2 4 1 —>The wanted us to plot In(v) vs time, and find the equation of the line.The equation of line for this...
A capacitor with initial voltage of 12 V is discharging through a resistor of 1 megaohm. The Voltages at different times are below t(s) 0 2 4 6 8 10 12 V(v) 12 8 5.5 3.5 2.5 1.5 1.0 Find time constant of RC circuit and find capacitance
In the circuit of the figure below, the battery emf e m f is 60 V, the resistance R is 150 Ω, and the capacitance C is 0.500 µF. The switch S is closed for a long time interval, and zero potential difference is measured across the capacitor. After the switch is opened, the potential difference across the capacitor reaches a maximum value of 150 V. What is the value of the inductance? In the circuit of the figure below,...
A capacitor is charged to an initial voltage Vo - 7.6 V. The capacitor is then discharged by connecting its terminals through a resistor. The currentI (t) through this resistor, determined by measuring the voltage VR(t)- I(t)R with an oscilloscope, is shown in the graph. 85 80 75 70 65 60 50 45 40 35 30 25 20 15 10 ms) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Part...
A 500 micro-Farad capacitor is charged to an initial voltage of 10 V. It is then allowed to discharge through a 40 k0 resistor. You take measurements of voltage versus time and record a voltage of .80 volts after 50 seconds, and a voltage reading of .47 volts after 60 seconds. What is your percent error against the theoretical value of the voltage reading after three time constants?
We calculated the capacticance of our capacitior in farads and we have to compare it to the listed capacitance of the capacitor as shown in the picture. When we do percent difference we get 200%... where did I mess up? That can't be right. The resistance of our resistor is 12970 ohms. Please explain this like you were talking to a child. Amicon 26936KO (M) 2000 F25V 81-POLAR NPS wire leads of the resistor to the table the body of...