Test Index

CBSE Class 12 Physics 2023 All Sets Paper

© examsnet.com
Question : 4 of 18
Marks: +1, -0
A square shaped coil of side 10 cm, having 100 turns is placed perpendicular to a magnetic field which is increasing at 1 T/s. The induced emf in the coil is
Solution:  
Given
N = 100
l = 10 cm
  dBdt=1\;\frac{dB}{dt} = 1
E.M.F. = NA  dBdt\;\frac{dB}{dt}
=100×10×10×10−4×1=100 \times 10 \times 10 \times 10^{-4} \times 1
= 1 volt
© examsnet.com
Go to Question:
Prev Question
Next Question