Suppose you have three long, parallel wires arranged so that in cross section they are at the corners of an equilateral triangle. Is there any way to arrange the currents so that all three wires attract each other? So that all three wires repel each other? Explain.
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Suppose you have three long, parallel wires arranged so that in
cross section they are at the corners of an equilateral triangle. Is there
any way to arrange the currents so that all three wires attract each other?
So that all three wires repel each other? Explain.
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- 2. Two wires carry currents as indicated. I The net torque on the top wire, due to the bottom wire, is: X) a. Directed left e. Directed into the page b. Directed right f. Directed out of the page c. Directed up g. Zero d. Directed downTwo long, straight wires are parallel and 15 cm apart. One carries a current of 2.8 A, the other a current of 5.6 A. (a) If the two currents flow in opposite directions, what is the magnitude (in N/m) and direction of the force per unit length of one wire on the other? magnitude N/m direction ---Select--- (b) What is the magnitude (in N/m) and direction of the force per unit length if the currents flow in the same direction? magnitude N/m direction ---Select---Physics students, wanted to investigate the forces of attractioh (F) between two parallel conductors carrying currents l1 and l2 (also known as Ampere's Law) The students noticed that as the length of the parallel conductors (/) was increased the force of attraction between the conductors (F) also increased. The data collected is in the |L= 5A conductor 1 average separation (d 0.50m) table: conductor 2 Length, I (m) Force, F (x 106 N) 12 = 5A 1.00 9.00 1.20 10.8 1.40 12,5 1.60 14.2 1.80 16.2 (iii) On the grid plot the force and length values from the table. (iv) Draw the line of best fit (v) Find the slope of the line of best fit. (c) Use the slope calculated and the Ampere's Law rmine the experimental value of equation to de the magnetic force constant, k.
- Two meter-long parallel wires each have a linear mass density of 30 g/m and carry the same current of 0.50 mA. The are hung from the same support bar by strings of length .080 m so that the wires run parallel to the ground. The current causes the wires to repel from each other, so they hang with an angle θ = 20◦ between the supporting strings of the two wires. Are the currents in the same or opposite directions? What is the magnitude of the current?The current flowing through the conductor creates a magnetic field as shown. In what direction does the conventional current flow? Towards the end of the wire labelled "X" Towards the end of the wire labelled "Y"Three wires with (nonzero) current flowing perpendicular to the page are spaced equally on a line as shown below. i, i, i, The first wire experiences no force due to the other two wires when the following is true regarding the current magnitudes of iz and iz: O i2 = 3i3 O i3 = i2 O none of these O i3 = 3i2 O it is impossible for the first wire to experience no force O i3 = 2i2 O i2 = 2i3
- Question in the attachmentsTwo parallel wires separated by 4.35 cm repel each other with a force per unit length of 1.80 x 104 N/m. The current in one wire is 5.45 A. (a) Find the current in the other wire. (b) Are the currents in the same direction or in opposite directions? O the same direction opposite directions (c) What would happen if the direction of one current were reversed and doubled? This answer has not been graded yet.Calculate the force per unit length on one of the two parallel, current carrying conductors. Each conductor carries 2A of current and the currents are in the same directions. the distance between the two is 2 cm. 4*10-5 N/m 4*10-7 N/m 2 * 10-5 N/m 4π * 10-5 N/m none of the above 4*10-7 N/m 2 * 10-5 N/m 4π * 10-5 N/m none of the above