25. Draw a phasor diagram of V₁ =169.7 sin(2nft + 60°) and V₂ =169.7 sin(2nft -60°).26. Two inductors L₁ and L₂ are connected inparallel. Derive the equation for theircombined inductance using KVL and KCL.2π+27. Prove that Sin² (wt) + Sin² (wt + ²/7) -Sin² (wt - ²) = 1.528. Create a superimposed plot (time is x-axis)for the voltage, the current, and powerdelivered to the motor with PF-0.7 overone complete cycle of 120V 60 Hz supply.29. For the circuit shown, what is the currentthrough and the voltage across each of thethree given components?L=0.3HAC240V60HzC=50μFR=30 Ω

As per the guidelines of Bartleby we suppose to answer first question only since the remaining…

Answered: 25. Draw a phasor diagram of V₁ = 169.7…

Engineering

Electrical Engineering

25. Draw a phasor diagram of V₁ = 169.7 sin(2nft + 60°) and V₂ = 169.7 sin(2nft - 60°).

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.

Question

25. Draw a phasor diagram of V₁ =
169.7 sin(2nft + 60°) and V₂ =
169.7 sin(2nft -60°).
26. Two inductors L₁ and L₂ are connected in
parallel. Derive the equation for their
combined inductance using KVL and KCL.
2π
+
27. Prove that Sin² (wt) + Sin² (wt + ²/7) -
Sin² (wt - ²) = 1.5
28. Create a superimposed plot (time is x-axis)
for the voltage, the current, and power
delivered to the motor with PF-0.7 over
one complete cycle of 120V 60 Hz supply.
29. For the circuit shown, what is the current
through and the voltage across each of the
three given components?
L=0.3H
AC
240V
60Hz
C=50μF
R=30 Ω

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