Please show all work and specify the correct answer at the bottom! Wire is wound
ID: 1454460 • Letter: P
Question
Please show all work and specify the correct answer at the bottom!
Wire is wound on a square frame, 30 cm by 30 cm, to form a coil of 7 turns. The frame is mounted on a horizontal shaft through its center (perpendicular to the plane of the diagram), as shown in the figure. The coil is in clockwise rotation, with a period of 0.060 s. A uniform, horizontal, magnetic field of magnitude 0.40 T is present. At a given instant, the plane of the coil forms a 60° angle with the horizontal, as shown. At that instant, what is the magnitude of the emf induced in the coil?
2.1 V 23 V 13 V 3.6 V 26 VExplanation / Answer
given data
givendata
A=30*30*10^-4 m^2
N=7
t=0.060s
B=0.40
angle =60deg
from lenze's law
induced emf E = -NBA cos(theta)/time
E=-7*0.40*30*30*10^-4*cos(60)/0.06 = 2.1 V
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.