| ⇦ | 
| ⇨ |
If an A.C. mains supply is given to be 220 V, what would be the average e.m.f. during a positive half cycle?
Options
(a) 256 V
(b) 512 V
(c) 386 V
(d) 198 V
Correct Answer:
198 V
Explanation:
Vₐᵥ = 2V₀ / π = (2 / π) [V(rms) × √2] = (2√2 / π) × V(rms)
Vₐᵥ = (2√2 / π) × 220 = 198 V
Related Questions: - The radius of a ball is(5.2±0.2)cm.The percentage error in the volume of the ball
- The numebr 0 (zero) is required for
- A dust packet is dropped from 5th storey of a multi-storeyed building
- If the nucleus ²⁷₁₃Al has nuclear radius of about 3.6 fm
- If the angle of minimum deviation is 60° for an equilateral prism, then the refractive
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The radius of a ball is(5.2±0.2)cm.The percentage error in the volume of the ball
- The numebr 0 (zero) is required for
- A dust packet is dropped from 5th storey of a multi-storeyed building
- If the nucleus ²⁷₁₃Al has nuclear radius of about 3.6 fm
- If the angle of minimum deviation is 60° for an equilateral prism, then the refractive
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply