In the figure, a wire loop of dimensions L = 40.9 cm and W = 27.1 cm lies in a m
ID: 1495415 • Letter: I
Question
In the figure, a wire loop of dimensions L = 40.9 cm and W = 27.1 cm lies in a magnetic field. What are the magnitude and direction (clockwise or A counterclockwise-or "none" if = 0) of the emf induced in the loop if B = (5.90 Times 10^-2 T/m)y^k? What are and the direction if B = (6.28 Times 10^-2 T/s)t k? What are and the direction if B = (8.08 Times 10^-2 T/m middot s)yt k? What are and the direction if B = (3.09 Times 10^-2 T/m middot s)xt J ? What are and (j) the direction if B = (5.00 Times 10^-2 T/m middot s)yt i?Explanation / Answer
a) emf E = 0 because B is constant with time
b) none
c) E = d phi/ dt = d(0.409*0.271*0.0628t)dt = 0.00696V
d) clockwise, can be found by lenz law. The direction of the induced current is such that the induced current makes a magnetic field opposes the change in flux
e)E = d phi/ dt = d(0.409*0.271*0.0808/2t)dt = 0.00448 V
f) clockwise, can be found by lenz law. The direction of the induced current is such that the induced current makes a magnetic field opposes the change in flux.
g) E = 0 as there is no flux through x-y plane
h) none
i) E = 0 as there is no flux through x-y plane
j) none