A wire in the form of a circular loop of radius 10 cm lies in a plane normal to a magnetic field of 100 T. If this wire is pulled to take a square shape in the same plane in 0.1 s, find the average induced emf in the loop.
Answers
Answered by
2
Answer:
16.4 is correct answer
Explanation:
Mark the answer brainliests please
Answered by
6
Given: Radius of wire = 10cm
Magnetic field = 100T
Time = 0.1s
To find: Average induced emf in loop
Solution:
2πR = 4L
Therefore,
L = πR/2 = π × 10/2 = 5πcm
Δs = Si - Sf
= πr² - L²
= π ( 0.1)² - ( 5π)² × 10`4
= 0.0067
Now,
e = ΔФ/Δt = B. Δs/Δt = 100 × 0.0067/0.1
= 6.7v
Answer : The average induced emf in the loop is 6.7v
Similar questions