A 5μF-capacitor is charged to a 12 V and then connected to a 4000-resistor. Find, (a) The time constant of this RC circuit.
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- An AC circuit contains a 24 resistor, a 15.9-mH inductor, and a 13.3F capacitor connected in parallel. The circuit is connected to a 240-V, 400-Hz power supply. Find the following values. XL=XC=IR=AIL=AIC=AP=WVARsL=VARsC=IT=AVA=PF=%=In a circuit, there is a series connection of an ideal resistor and an ideal capacitor. The conduction current (in Amperes) through the resistor is 2sin(t+ n/2). The displacement current (in Amperes) through the capacitor isAn RC circuit has an emf of 10 sin t volts, a resistance of 100 ohms, a capacitance of 0.005 farads, and no initial charge on the capacitor. Find the charge on the capacitor at any time t.
- The current through a 10-mH inductor is 10e-2 A. Find the voltage and the power at t = 3 s. The voltage is mV. The power is mW.A 100-mH inductor is connected in parallel to the series connection of a variable resistor R and a 20-pF capacitor. The circuit is energized by a 120 Vac, 60-Hz supply. Find the value of R such that the total circuit current is 2.302305Z - 86.6782 A.R 4. A resistor and a capacitor are connected in series across a supply of 250V. Where supply frequency is 50HZ the current in the circuit is 5A. When the supply frequency is 60HZ, the current is 5.8A. Find the value of the capacitance.
- Two capacitors A and B having capacitance of 20uF and 30uF respectively are connected in series to a 600v supply. Determine the p.d across each other. If a third capacitor C is connected in parallel with A and it is found that p.d across B is 400v, calculate the capacitance of C and energy stored in itWhat is the total capacitance of capacitors connected in series?A. The total capacitance is the same as the capacitance of each capacitorB. The total capacitance is the sum of the individual capacitancesC. The total capacitance is the sum of the reciprocals of the individual capacitancesD. The total capacitance is the sum of the capacitances of the first and last capacitor in the series connectionA 20-µF capacitor is connected in parallel to the series connection of a variable resistor R and a 100-mH inductor. The circuit is energized by a 120 Vac, 60-Hz suuply. Find the value of R such that the total circuit current is 1.16733825.8339° A.
- Three capacitors valued luF, 2uF and 5uF, What is their equivalent capacitance in series? And What is their equivalent capacitance in parallel?Find the voltage v1 across the capacitor as shown in figure below due to DC voltage source.A resistor and a capacitor are connected in series across a supply of 250V. When the supply frequency is 50Hz, the current in the circuit is 5A. When the supply frequency is 60Hz, the current is 5.5A. Find the value of the capacitance.