A capacitor in a telephone circuit has a capacitance of 3μF. What current flows through it when 15V at 800Hz is impressed across it? answer should be in polar form
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A capacitor in a telephone circuit has a capacitance of 3μF. What current flows through it when 15V at 800Hz is impressed across it? answer should be in polar form
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- The generator at a large power plant has an output of 2,000,000 kW at 23,000 V. (a) If it were a DC generator, what would be the current in it? A (b) What is its energy output each day-in joules and in kilowatt-hours? kWh (c) If this energy is sold at a price of 10 cents per kilowatt-hour, how much revenue does the power plant generate each day? %24 Need Help? Road It Watch ItLet's say you have a 30W lightbulb that operates on a 120V alternating current. When the light is on the temperature is 2473 celsius. What would be the resistance at 2066 celsius? Note that the temperature coefficient α=4.5x10^-3/celsiusA fully charged RC circuit is set up using R = 15.0 Ω and C = 8.20 μF with the switch initially open, as shown in the figure. At a certain time after the switch is closed, the current in the circuit has magnitude 3.00 A and the charge on the capacitor is 30.0 μC. At this time, what is the rate at which energy is being stored in the capacitor (in W)?
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- Problem 5: A current of I- 2.6 A passes through the circuit shown, where R- 65 3R 5R V) 2R 6R 2R 7R 5R 10R Otheexpertta.com Part (a) In terms of R, I, and numeric values, write an expression for the voltage of the · source, V. Part (b) What is the voltage, V in volts? tan( sin() cotanO a acos cosh0t cosO asin() acotan 4 5 6 sinh() cotanhO *1 23 0 tanh0c O Degrees O Radians CLEAR BACKSPACEA 24 µF capacitor is connected across a programmed power supply. During the interval from t = 0 tot = 3.00 s the output voltage of the supply is given by V(t) = 6.00 +4.00t - 2.00t² volts. At t = 0.900 s find (a) the charge on the capacitor, (b) the current into the capacitor, and (c) the power output from the power supply. (a) Number i (b) Number IA (c) Number F i Units Units Units >The circuit in the figure consists of switch S, a 5.10 V ideal battery, a 20.0 MQ resistor, and an airfilled capacitor. The capacitor has parallel circular plates of radius 4.90 cm, separated by 5.00 mm. At time t = 0, switch S is closed to begin charging the capacitor. The electric field between the plates is uniform. At t = 150 µs, what is the magnitude of the magnetic field within the capacitor, at radial distance 2.40 cm? Number i S C R Units T