1. A sinusoidal alternating voltage has an RMS value of 440 V and a frequency of 50 hz. It crosses the zero axis in a positive direction when t-0. Determine a) the time before passing through its negative maximum reaches the value of 225 V, b) the time to reach a value of 300 V before coming to a period. 2. Given the four instantaneous current: e:=-15 cos (346t-2), es= 12.5 sin (346t+3m/4), es= -10 sin (346t-/12) and e-18 cos (346t5n/8). Determine the resultant voltage using wave and vector solution. 3 Three circuits A, B and C are connected in series across 350 V supply. The voltage across circuit A is 80 V lagging the supply voltage by 33° and the voltage across circuit C is 140 V leading the supply voltage by 48° Determine the voltage across circuit B and its phase displacement from the supply voltage using wave and vector solution. CS Scanned with CamScanner

1. A sinusoidal alternating voltage has an RMS value of 440 V and a frequency of 50 hz. It crosses the zero axis in a positive direction when t-0. Determine a) the time before passing through its negative maximum reaches the value of 225 V, b) the time to reach a value of 300 V before coming to a period. 2. Given the four instantaneous current: e:=-15 cos (346t-2), es= 12.5 sin (346t+3m/4), es= -10 sin (346t-/12) and e-18 cos (346t5n/8). Determine the resultant voltage using wave and vector solution. 3 Three circuits A, B and C are connected in series across 350 V supply. The voltage across circuit A is 80 V lagging the supply voltage by 33° and the voltage across circuit C is 140 V leading the supply voltage by 48° Determine the voltage across circuit B and its phase displacement from the supply voltage using wave and vector solution. CS Scanned with CamScanner

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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