THE CURRENT BALANCE Here's some context : the current balance consists essentially of a rigid straight conductor permanently mounted on one end of the device. A second identical conductor mounted on a pivot can be moved to different distances from the first conductor. The gravitational forces acting on this second conductor are balanced by a modifiable counterweight. Draw a diagram that represents two linear wires of equal length installed horizontally and carrying identical currents in opposite directions, separated by a certain distance. Write the expression for the magnetic force exerted by the fixed rod on the moving rod under these conditions. a) This magnetic force on the moving rod will be balanced by a weight placed on the moving rod. Apply Newton's second law describing the rod in equilibrium b) From the equation found earlier, draw another equation showing the current in the rod required to restore equilibrium as a function of the mass added to the moving rod

THE CURRENT BALANCE Here's some context : the current balance consists essentially of a rigid straight conductor permanently mounted on one end of the device. A second identical conductor mounted on a pivot can be moved to different distances from the first conductor. The gravitational forces acting on this second conductor are balanced by a modifiable counterweight. Draw a diagram that represents two linear wires of equal length installed horizontally and carrying identical currents in opposite directions, separated by a certain distance. Write the expression for the magnetic force exerted by the fixed rod on the moving rod under these conditions. a) This magnetic force on the moving rod will be balanced by a weight placed on the moving rod. Apply Newton's second law describing the rod in equilibrium b) From the equation found earlier, draw another equation showing the current in the rod required to restore equilibrium as a function of the mass added to the moving rod

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As shown in the figure below, a circular ring with a radius of a is folded along a line across the diameter so that the two semicircles are perpendicular. In the magnetic field, this ring was rotated at a constant angular velocity over time, as shown in the figure. The axis of rotation is an extension of the fold-off line and is perpendicular to the magnetic field. The resistance of the ring is R. (1) Give a qualitative explanation of what will happen. (2)Find the current flowing through the ring. (3)What torque should be applied to the ring to allow it to rotate at a constant angular speed? (4)What do you have to do to turn it N round? (5) What energy changes from ring to heat? (6) How much energy changes from ring to heat? * I'll be so thankful and satisfied to get answer just least 3 of 6 questions..
Consider the seven current-carrying wires and the four closed paths shown in the figure. For each of these paths (C1, C2, C3, and C4) determine the following in terms of ?0. Use standard sign convention for the currents; minus is down into the page and positive is up out of the page. (Assume I1 = 2.00 A, I2 = 2.00 A, I3 = 5.00 A, I4 = 6.00 A, I5 = 5.00 A, I6 = 6.00 A, and I7 = 7.00 A.)
The figure below is a cross-sectional view of a coaxial cable. The center conductor is surrounded by a rubber layer, an outer conductor, and another rubber layer. In a particular application, the current in the inner conductor is I, = 1.20 A out of the page and the current in the outer conductor is I, = 3.06 A into the page. Assuming the distance d = 1.00 mm, answer the following. (a) Determine the magnitude and direction of the magnetic field at point a. magnitude pT direction --Select-- (b) Determine the magnitude and direction of the magnetic field at point b. magnitude pT direction --Select---
The figure below is a cross-sectional view of a coaxial cable. The center conductor is surrounded by a rubber layer, an outer conductor, and another rubber layer. In a particular application, the current in the inner conductor is I, = 1.16 A out of the page and the current in the outer conductor is I, = 3.18 A into the page. Assuming the distance d = 1.00 mm, answer the following. 12 (a) Determine the magnitude and direction of the magnetic field at point a. 2.32 magnitude If you construct an imaginary circle of radius d passing through point a, how much current passes through this circle? uT direction upward (b) Determine the magnitude and direction of the magnetic field at point b. 1.34 magnitude You can approach this problem by finding the field produced by current I, and the field produced by I1, and then adding them vectorially. UT direction downward
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.
The figure below is a cross-sectional view of a coaxial cable. The center conductor is surrounded by a rubber layer, an outer conductor, and another rubber layer. In a particular application, the current in the inner conductor is I, = 1.16 A out of the page and the current in the outer conductor is I, = 2.90 A into the page. Assuming the distance d = 1.00 mm, answer the following. d d (a) Determine the magnitude and direction of the magnetic field at point a. magnitude HT direction -Select--- (b) Determine the magnitude and direction of the magnetic field at point b. magnitude UT direction ---Select---
he figure below shows a long straight wire near a rectangular current loop. (Assume I1 = 18.0 A and r = 9.00 cm.) What is the magnitude in newtons and direction of the total force on the loop?
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A rectangular loop of wire is placed below an infinitely long straight wire, as shown to the right. Both the rectangular loop of wire and the infinitely long straight wire carry a current of 3.5 A. Determine the magnitude and direction of the force on the rectangular loop of wire.
A straight conductor of fixed length / is moving at 45 degrees to a uniform magnetic field of strength B with constant speed v. Calculate v, if B=8.9 T, /=1.6 m and electromotive force e =5 V. Give your answer in SI units. Answer: Choose.. Previous page
In the figure, a long straight wire carries a current of i1=30 A, and a rectangular ring carries a current of i2=20 A. Take the dimensions as a = 1cm, b = 8cm and L = 30cm. Write the force on the loop due to i1 using unit vector notation?