formula was used.
1. How much voltage (in terms of the power source voltage V ) will the capacitor...
For charging process, the voltage across the capacitor as a function of time is given by, Vc = [1 - exp(-t/)]. (a) When the time is twice the time constant, what percentage of the maximum voltage is on the capacitor? (b) Find the time it took, in terms of the time constant, for the voltage across the capacitor to be 30% of the maximum voltage. Resistor 1000 Ohms Capacitor 1 Farad Power Supply set to 6 Volts
A capacitor and a resistor that are in series are initially connected to a power supply with 22 volts. The power supply is then cut-off and the capacitor begins to discharge through the resistor. At t = 20 s, the voltage across the capacitor drops to 7 volts. What is the resistance of the resistor, in mega ohms (MΩ) if the capacitance, C = 7 μF ? Please give your answer in two decimal places.
A 6.0 V battery, a 220 W resistor, a 680 µF capacitor (initially uncharged), and a switch (initially open) are all connected in series, forming a loop. At t = 0 the switch is closed. (a) Find the initial current in the loop. (b) Find the charge on the capacitor at t = 0.100 s. (c) At what point in time will the voltage across the resistor equal 5.0 V? (d) What will be the maximum energy stored in the...
1. A resistor R and capacitor care connected in series with an AC voltage source with frequency f and maximum voltage Vo. a. Find the complex impedance (in the form Z = R + jX). If the impedance is written in polar form (Z = Zejº), find expressions for Z and Ⓡ. Write your answers in terms of the variables R, C, and o(= 21f). b. If the voltage source is described by the phasor V = V, ejwt, and...
What are the Equilibrium voltages of the capacitor and the resistor when the function generator voltage is +v0? Is this what you observe on your oscilloscope sketches? what are the equilibrium voltages of the capacitor and the resistor when the function generator voltage is ± you observe on your oscilloscope sketches? ? Is this what An RC circuit consists of a resistor connected to a capacitor. There may also be a fixed power supply, depending on whether the capacitor is...
An AC voltage source has an output of ∆V = 172.0 sin(408t) Volts. 1. Calculate the RMS voltage. 2. What is the frequency of the source? 3. Calculate the voltage at time t = 1/104 s. 4. Calculate the maximum current in the circuit when the generator is connected to an R = 56.0 Ω resistor.
A 30 mF capacitor is connected to a 12 V power supply. How much energy is stored in the capacitor? (b0 If the capacitor had been connected to a 10 V battery, how much energy would have been stored?
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,...
A 20mH inductor, a 40.0 Ohm resistor, a 50.0 muF capacitor, and voltage source of 100 e^-100t are connected in series in an electric circuit. Find the charge on the capacitor as a function of time t, if q = 0 and i = 0 when t = 0
1)A 3300 F capacitor is connected in series with a 50 k resistor to a 64 V voltage source. At t=0, the charge on the capacitor is zero. Initially, is almost zero, while is almost 64 V. The current is constant over time. While the voltage across the capacitor changes, the voltage across the resistor remains constant. The voltage across the capacitor is always 64 V. Initially, is almost 64 V, while is almost zero. As the charge on the capacitor increases over time, so does the current through the circuit.2)At what time is the...