A current of 3.4 A passes a 70 mH inductor. How much energy is stored in the inductor in W? Answer:
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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?The value of current after 1 sec. Plot the current of the inductor for t > 0The inductance between two points is 100 H. What is the voltage of the inductor after 10sec, if the measured current is 100 A?
- 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.Determine the energy stored by a 100 mH inductor when a current of 1 mA flows through it.The stored energy in a capacitor is 119 pF. If the voltage across the capacitor is 61 V,find the charge stored on a capacitor?
- If the current flowing through a 75 mH inductor has the waveform shown, what is the voltage at t = 2.5s?Basic Electrical Engineering1. Derive the formula for the energy stored in an inductor.2. Derive the formula for the total inductance of series inductors.3. Derive the formula for the total inductance of parallel inductors.In your solution, follow the sequence: Given, unknown, solution, and final answer. BOX your final answers. thank you! 6. A steady state of 20 mA is passed through a coil with an inductance of 100 mH. What is the voltage induced by the coil?
- A 5000 uF capacitor is charged by a steady current of 0.5 mA for 30 s. Calculate (a) the charge supplied, and (b) the capacitor p.d. at 30 sA voltage v = 120 sin 377t V is applied across a pure capacitance of 100μF, Determine the time when the energy stored in the electric field is 0.5 joulewhat is the value of an inductor that will induce a voltage of 75V in a circuit if the current is increased from 2 A to 5 A in 20 milliseconds