Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
119 views
in Electronics by (115k points)
closed by
In a certain single-phase ac circuit the instantaneous voltage is given by v = V sin(ωt + 30°) p.u. And the instantaneous current is given by i = I sin (ωt – 30°) p.u. Hence the per unit value of reactive power is
1. ¼
2. ½
3. √3/4
4. √3/2

1 Answer

0 votes
by (152k points)
selected by
 
Best answer
Correct Answer - Option 3 : √3/4

v = V sin(ωt + 30°) p.u.

i = I sin (ωt – 30°) p.u.

Reactive power, \(\frac{V}{{\sqrt 2 }} \times \frac{I}{{\sqrt 2 }} \times \sin \phi = \frac{1}{{\sqrt 2 }} \times \frac{1}{{\sqrt 2 }} \times \sin 60 = \frac{{\sqrt 3 }}{4}\)

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...