P10 In a strong magnetic field B, the two ends of a thin, flexible wire of length { are fixed at points P and P2, a distance l/2 apart. The direct current flo- wing in the wire is I. What is the shape of the wire, if the magnetic field vector is perpendicular to the line segment P P? With what force does the wire pull on the anchor points?

Can you answer problem 5? Can you also provide a short explanation for the answer you chose?

A thin, long wire is carrying a steady current I as shown in the figure below. What is the direction of the magnetic field at the point Px?

Consider a long, horizontal Large Wire with current of 10 A running through it. We want to levitate a horizontal, thin, 0.50 m length of wire above it. If the thin wire has a mass of 10 grams, and a current of 300 mA, how far above the Large Wire will it hover (net force of zero) due to magnetic and gravitational forces? A. If the thin wire hovers above the Large Wire due to their magnetic fields, are their currents going the same direction, or opposite directions. Explain. B. Draw a diagram and label the directions of currents, and all other relevant quantities and vectors. C. Find the distance above the Large Wire the small thin wire will hover (net force of zero). D. Would your answers to parts A and C change if we wanted to find a distance below (rather than above) the Large Wire that the smaller thin wire could hover, due to their magnetic fields. Explain. Don't calculate any values but draw a new diagram and explain how this situation compares to the problem above.

Q.5: A wire in the form of an equilateral triangle carries a current of 2.5A clockwise. It is placed enoo sin a uniform magnetic field of 0.15T which is perpendicular to the base of the triangle. What are the forces on the three sides of the triangle? What is the net force on the triangle? Take the side of the triangle as 2.0m. Show the forces on the wire in each arm. В

A wire has a current of 15 A going to the right. What is the B field and its direction 0.5 m below the wire? What is the force and direction on a proton traveling 150 m/s to the right at this point?