Im sorry this is a long one. I mostly don\'t know what equation to use to approa
ID: 1466413 • Letter: I
Question
Im sorry this is a long one. I mostly don't know what equation to use to approach this and how to determine if its in the plane or out of the plane. I know the thumb rule but I don't know how to apply it. Help would be very appreciated.
The two insulated wires in the figure (Figure 1) cross at a 30? angle but do not make electrical contact. Each wire carries a 5.0 A current. Points 1 and 2 are each 5.0 cmfrom the intersection and equally distant from both wires.
A) What is the magnitude of the magnetic field at point 1?
Express your answer using two significant figures.
B)What is the direction of the magnetic field at point 1?
A.out of the page
B.into the page
C.magnetic field is zero
C) What is the magnitude of the magnetic field at point 2?
Express your answer using two significant figures.
D) What is the direction of the magnetic field at point 2? (Wouldnt this one be the opposite of part B?)
A.out of the page
B.into the page
C.magnetic field is zero
5.0 A 5.0 AExplanation / Answer
Let I1 = I2 = I = 5 A
A) Bnet = B1 + B2
= mue*I1/(2*pi*r) + mue*I2/(2*pi*r)
= mue*I/(2*pi*r) + mue*I/(2*pi*r)
= mue*I/(pi*r)
= 4*pi*10^-7*5/(2*0.05)
= 6.28*10^-5 T
B) A.out of the page
C) Bnet = 0
D) C.magnetic field is zero