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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
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle moves along with x-axis.The position x of particle with respect to time
- A capacitor of capacitance value 1 μF is charged to 30 V and the battery
- The limiting angle of incidence for an optical ray that can be transmitted
- If force(F), Velocity(V) and time(T) are taken as fundamental units, then the dimensions
- What will be the ratio of the distance moved by a freely falling body from rest in 4th
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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