- #1
girl21girl
- 1
- 0
help me how to solve this problem ??(e.m.f)
A rectangular loop with sides of length a= 1.80 cm and b= 2.10 cm is placed near a wire that carries a current that varies as a function of time: it=2.92 + 1.19t2 where the current is in Amperes and the time is in seconds. The distance from the straight wire to the closest side of the loop is d= 0.290 cm.
the figure is here : http://img171.imageshack.us/img171/5849/prob09awloop2aa6.gif
1) What is the magnetic flux through the loop at time t= 2.50 seconds? (Define positive flux into the page.)
my answer is :
(mu0*I/2*pi)*b*ln[(d+a)/d]
=8.59×10-8 T*m^2
2) What is the induced e.m.f. in the loop at time t= 2.50 seconds?
(Note that positive emf is clockwise. Compute the rate of change of magnetic flux through the loop to get the e.m.f.. )
help me how to solve this problem ??
A rectangular loop with sides of length a= 1.80 cm and b= 2.10 cm is placed near a wire that carries a current that varies as a function of time: it=2.92 + 1.19t2 where the current is in Amperes and the time is in seconds. The distance from the straight wire to the closest side of the loop is d= 0.290 cm.
the figure is here : http://img171.imageshack.us/img171/5849/prob09awloop2aa6.gif
1) What is the magnetic flux through the loop at time t= 2.50 seconds? (Define positive flux into the page.)
my answer is :
(mu0*I/2*pi)*b*ln[(d+a)/d]
=8.59×10-8 T*m^2
2) What is the induced e.m.f. in the loop at time t= 2.50 seconds?
(Note that positive emf is clockwise. Compute the rate of change of magnetic flux through the loop to get the e.m.f.. )
help me how to solve this problem ??
Last edited by a moderator: