| ⇦ | 
| ⇨ |
The primary and secondary coil of the transformer have 50 and 1500 turns respectively. If the magnetic flux ? linked with the primary coil is given by ? = ?￢ﾂﾀ + 4t, where ? is in webers, t is time in seconds and ?￢ﾂﾀ is the constant, the output voltage across the secondary coil is
Options
(a) 120 volts
(b) 220 volts
(c) 30 volts
(d) 90 volts
Correct Answer:
120 volts
Explanation:
Vₛ / Vₚ = Nₛ / Nₚ where
Nₛ = No. of turns across primary coil = 50
Nₚ = No. of turns across secondary coil = 1500
and Vₚ = d? / dt = d/ dt( ?￢ﾂﾀ + 4t) = 4
⇒ Vₛ = 1500 / 50 x 4 = 120 V
Related Questions:
- A filament bulb (500W,100V) is to be used in a 230V main supply. When a resistance
- Which one of the following is a vector?
- The phase difference between the instantaneous velocity and acceleration of a particle
- The value of Poisson’s ratio lies between
- A particle is executing the motion x=Acos (ωt-θ). The maximum velocity of the particle is
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