1. An inductive coil having a 30 om resistance and unknown inductance is connected in parallel with a 100 ohm resistor. The combination is connected across a 100V, 50hz source. If the power delivered by the source is 400W, find the value of the inductance.
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- In an R-L parallel circuit, ET=240 volts, R=560, and XL=330. Find apparent power.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?A coil has resistance 10 Ω , inductive reactance 20 Ω . A capacitance of 50 uF is connected in series with it, and this series is connected to a 230 volt, 50 Hz supply, find :- (1) the current through the circuit (2) also find the power.
- A coil having a resistance of 45 and an inductance of 0.4 H is connected in parallel with a capacitor having a capacitance of 20 μF across a 230-V, 50-Hz system. Calculate (a) the current taken from the supply (b) the power factor of the combination.A coil absorbs 20 W when connected to a 240 V, 400Hz. if the current is 0.2 A, find the resistance and the inductance of the coil.A 400 Ω resistor is connected to two coils X1 and X2 = 2X1 additively connected, completing the circuit by means of a 220 V and 60 Hz power supply, obtaining a consumption of 0.4 A. If by inverting the coil X1, the current of 0.5 A. Determine the value of the inductive reactances and the mutuinductance.
- A coil with an inductance of 100 mH is connected in series with a resistance of 20 Ω. To this system If 110 V AC with a frequency of 25 Hz is applied, the impedance, current, resistance and coil of the system Find the voltage at the terminals, active, reactive and apparent power values of the system.A coil of resistance R ohms and inductance L henrys is connected in series with a 50µF capacitor. If the supply voltage is 225V at 50 Hz and the current flowing in the circuit is 1.5∠ −30◦A, determine the values of R and L. Determine also the voltage across the coil and the voltage across the capacitor.A coil of wire having negligible resistance and inductance of 0.248 H is connected to a 117 V, 50 Hz source. Find the current drawn.
- A 210-microfarad capacitor is connected in parallel with a coil of 25-ohm resistance and 220mH inductance having a supply voltage of 230V, 50Hz. Solve the following: a. Power Factor of the Circuit b. Total Current c. Active/Real Power d. Reactive Powera) A coil of inductance 150mH and zero resistance is connected across a 100V, 50Hz supply. Calculate the inductive reactance of the coil and the current flowing through it.A series circuit consists of a resistance of 10 ohms, an inductance of 200/π mH, and capacitance of 1000/π μF. Calculate (a) the current flowing in the circuit if the supply voltage is 200 V, 50 Hz, (b) the power factor of the circuit, (c) the power drawn from the supply. Also, draw the phasor diagram.