1. Consider the following magnetic circuit with a core that has a relative permeability 2500. Thedepth of the core is 2cm. The coil has 500 turns and it carries a current of 20A.Nk10cm20 cm10ст✓10 cmT20cm10 cmTa)Determine the flux and flux density in the core.b) Determine the inductance.c)Suppose a single-phase 240V(rms) voltage with 50Hz is now connected to thecoil of the above circuit, obtain the expression for the current in the coil

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Answered: 1. Consider the following magnetic…

Electrical Transformers and Rotating Machines

4th Edition

ISBN:9781305494817

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter3: Inductance In Alternating-current Circuits

Section: Chapter Questions

Problem 5RQ: Three inductors are connected in parallel. Inductor 1 has an inductance of 0.06 H; inductor 2 has an...

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8. An R-L series circuit has a reactive power of 1234 VARs and an apparent power of 4329 VA. By how many degrees are voltage and current out of phase with each other? 9. An R-L series circuit contains a resistor and an inductor. The resistor has a value of 6.5 22. The circuit is connected to 120 V and has a current flow of 12 A. What is the inductive reactance of this circuit? 10. What is the voltage drop across the resistor in the circuit in Question 9? 11. A phase angle meter connected in an R-L series circuit indicates that the current is 28 degrees out of phase with the voltage. What is the circuit power factor? 12. An R-L series circuit has a power factor of 73%. If the apparent power is 560 kVA, what is the true power in the circuit?
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4
17. Calculate the equivalent capacitance and the voltage on C, on the circuit, as shown. C3 = 5 μF C₂ = 15 μF C4 = 20 μF C₁ = 10 μF + H V = 100 V A) C = 8 μF, V₁ = 50 V eq B) C = 10 μF, V₁ = 40 V C) C =2 μF, V₁ = 25 V eq D) C = 5 μF, V₁ = 50 V eq

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