What is the magnetic field strength at point 1 in the figure?
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Question “What is the magnetic field strength at point 1 in the figure?”
Part A
What is the magnetic field strength at point 1 in the figure? (Figure 1)
Part B
What is the magnetic field direction at point 1 in the figure?
Part C
What is the magnetic field strength at point 2 in the figure?
Part D
What is the magnetic field direction at point 2 in the figure?
Part E
What is the magnetic field strength at point 3 in the figure?
Part F
What is the magnetic field direction at point 3 in the figure?
Answer
A) We know the magnetic field strength. B =
is the current. r is distance from current carrying wire.
Point 1 = magnetic field due top-wire current + magnetic field bottom wire = net B = B1+ (-B2)
= (4pi*10^-7*10/2pi*0.02 ) – (4pi*10^-7*10/2pi*0.06) = 6.67*10^-5T
B2 is negative, as it points in the opposite direction to the page. However, it is further away from the page so the net magnetic field is not there.
B) The magnetic field direction at point 1, is out of the page, as described above.
C) The magnetic field strength at point 2
B(total)=B1+B2=(4pi*10^-7)(10)/(2pi*0.02) + (4pi*10^-7)(10)/(2pi*.02)=2.0*10^-4 T (into page)
B1 and B2 both point to the page. Therefore, net field is also into the page.
D) The magnetic field direction at point 2, is not as far away from the page, as previously described.
E) The magnetic field strength at point 3 (Magnetic Field Strength)
B(total)=B1+B2=(4pi*10^-7)(10)/(2pi*0.02) – (4pi*10^-7)(10)/(2pi*.06)= 6.67*10^-5T (out of the page)
F(B2 is negative since it points in the opposite direction (pointing towards the page), but it is farther away, so the net magnetic field is outside the page.
Conclusion
Above is the solution for “What is the magnetic field strength at point 1 in the figure?“. We hope that you find a good answer and gain the knowledge about this topic of engineering.