AC Fundamentals – 44

5555555555

44. How many degrees are there in /3 rad?

(a) 6°
(b) 60°
(c) 180°
(d) 27°

Answer

Answer : (b)

Explanation

Explanation :

METHOD-1

1 rad = 57.3°
π/3 rad = (π/3) x 57.3° = (3.142/3) x 57.3° = 60°

METHOD-2

1 degree = π/180 radians,
1 radians =180/π degree
So,
π/3 radians = (180/π) * (π/3) degree = 180/3 degree = 60°

Subject Name : Electrical Engineering

Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT

Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant

Electrical Engineering Books

RC Circuits - 13
5555555555 13. The complex number 6 + j6 is equivalent to ________. (a) 6 ∠45° (b) 36 ∠45° (c) 8.48 ∠45° (d) 8.48 ∠90°
Tags: °, basic, electrical, engineering
RC Circuits - 12
555555555512. What is the angular difference between +j4 and –j4? (a) 30° (b) 90° (c) 180° (d) 270°
Tags: °, basic, electrical, engineering
RC Circuits - 14
5555555555 14. The complex number 40 ∠55° is equivalent to ________. (a) 55 + j55 (b) 40 + j40 (c) 45.88 + j65.52 (d) 22.94 + j32.76
Tags: °, basic, electrical, engineering
AC Fundamentals - 53
5555555555 53. The average value of a 12 V peak sine wave over one complete cycle is ________. (a) 0 V (b) 1.27 V (c) 7.64 V (d) 6.37 V
Tags: ac, fundamentals, basic, electrical, engineering
AC Fundamentals - 54
5555555555 54. The average half-cycle value of a sine wave with a 40 V peak is ________. (a) 25.48 V (b) 6.37 V (c) 14.14 V (d) 50.96 V
Tags: ac, fundamentals, basic, electrical, engineering

Related Posts