A straight line conductor of length 0.4 m is moved with a speed of 7 \[m{{s}^{-1}}\] perpendicular to magnetic field of intensity of 0.9\[Wb{{m}^{-2}}\]. The induced emf across the conductor is
A)25.2 V
B)5.24 V
C)2.52V
D)1.26V
Correct Answer:
C
Solution :
The induced emf across the conductor E = Blv \[=0.9\times 0.4\times 7=252\,V\]