Magnetostatics Provide qualitative or quantitative details on the following ques

Question

Magnetostatics

Provide qualitative or quantitative details on the following questions depending on their nature. Currents I1 and I2 flow in the same direction along two parallel conductors, with I1 I2 as shown in figure 8. In which of the three regions I,II or III, and at what distance from the conductor carrying current I1 is the magnetic field equal to zero? Provide quantitative details. FIGURE 8 FIGURE 9 FIGURE 10 A conducting loop shown in figure 9 carrying a current is placed in a non-uniform magnetic field. How will it move as a result of the action of this field? Answer qualitatively. A direct current, constant in magnitude and direction, flows in a contour made from a soft wire shown in figure 10. What shape does this contour tend to acquire as a result of the action of the magnetic field created by the current? Answer qualitatively.

Explanation / Answer

a)at II (if d is the total distance in between then at distance d*(I2/(I1+I2)) from the wire with current I1)

b)it will rotate anticlockwise

c) it will be stretched in a circle due to the repulsion from the magnetic field

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