PART A. What is the magnetic field strength at point 1 in the figure? (Figure 1)

Question

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?

Express your answer using two significant figures.

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?

Express your answer using two significant figures.

PART F. What is the magnetic field direction at point 3 in the figure?

Explanation / Answer

the magnetic fiel at a point of distance r from a current wire is

B = muenot * I / 2pi * r

part A

at point 1

due to first wire

B1 = mue not * 10 / 2pi * 0.02

B1 = 1000 T ( out of the page)

due to lower wire is

B2 = - mue not * 10 / 2pi * 0.06

B2 = - 333.33 T ( into the page)

netfield is B1 - B2

B = 666.66 T

part B

the direction is out of the page

part C

due to first wire

B1 = mue not * 10 / 2pi * 0.02

B1 = 1000 T (into the page)

due to lower wire is

B2 = mue not * 10 / 2pi * 0.02

B2 = 1000 T ( into the page)

net field B = B1 + B2

B = 2000 T

part D

the direction is into the page

part E

due to first wire

B1 = mue not * 10 / 2pi * 0.06

B1 = - 333.33 T ( into the page)

due to lower wire is

B2 = mue not * 10 / 2pi * 0.02

B2 = 1000 T ( out of the page)

B = B2 - B1

B = 666.66 T

part F

in to the page

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