A circuit having a resistance of 20 W and an inductance of 0.5 H is connected suddenly across a 200 V supply. Find the current when the time is 0.05 s.
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A circuit having a resistance of 20 W and an inductance of 0.5 H is connected suddenly across a 200 V supply. Find the current when the time is 0.05 s.
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- You are a journeyman electrician working in an industrial plant. Your task is to connect an inductor to a 480-V, 60-Hz line. To determine the proper conductor and fuse size for this installation, you need to know the amount of current the inductor will draw from the line. The nameplate on the inductor indicates that it has an inductance of 0.1 H. An ohmmeter reveals that it has a wire resistance of 10 . How much current should this inductor draw when connected to the line?Incandescent lighting of 500 W is connected in parallel with an inductive load. A clamp-on ammeter reveals a total circuit current of 7 A. What is the inductance of the load connected in parallel with the incandescent lights? Assume a voltage of 120 V and a frequency of 60 Hz.A resistance of 12 ohms and capacitance of 0.01 farad is connected in series with a 200 volts battery. Find the charge after 0.5 second and the current after 0.4 second
- 80 V voltage is applied to the circuit with capacitors in the figure. a) Find the equivalent capacity? b) Find the total charge? c) Calculate the charge on capacitor C?An R-C series circuit has a supply voltage of 100 V. The resistance is 200 ohms and the capacitance is 0.0001 Farad. Solve for the current "i" at any time "t". Solve for the charge "q" at any time "t".A coil of resistance 10 and inductance 0.8 H is connected to 200 V dc supply. The initial rate of change of current is?
- A 1-H inductor is connected in series with a 6-ohm resistor. If the connection is energized from a 9-V DC source, determine the current (in amperes) through the circuit for a long time. The initial current is 100 mA. Express your answers accurate to four decimal places. No need to put the units.a.) What is the resistance in the circuit a long time after the switch is closed? b.) What is the current through both resistors a long time after the switch is closed? c.) What is the current through the inductor a long time after the switch is closed?An inductor of 1 henry and a resistance of 2 ohm are connected in series with an EMF of 100 volts, if the current is initially zero what is the maximum current?
- burd Closing a switch connects in series a 20-V source, a 2-2 resistor, and a 3.6-H inductor. How long does it take the current to get to its maximum value, and what is this value? 4.A 150V moving iron volt meter intended for 50Hz has an inductance of 0.7H and a resistance of 3K ohm. Find the series resistance required to extend the range of instrument to 300V if this 300V - 50Hz instrument used to measure dc voltage find the dc voltage when the scale reading is 200VWhich of the following statements regarding circuits are true? To find resistance in a parallel circuit, you must sum the individual resitances The direction of conventional current is the direction of positive charge flow. In a circuit, electrons flow from high potential energy (at the negative terminal) to low potential energy (at the positive terminal). When electricity is passed through a lightbulb, the electrons are 'used up' by the bulb. All voltages in a loop sum to 12V The current that flows into a resistor is the same as the current that flows out. To 'short circuit' something means there is an alternate path of less resistance for the current to flow. Switching on a light happens immediately because electrons move from the power source to the bulb incredibly quickly. A 'kilowatt-hour' is a unit of power, not energy.