A current of 15.0 A in the direction shown (CCW). A nearby straight wire, at a d

Question

A current of 15.0 A in the direction shown (CCW). A nearby straight wire, at a distance of 0.100 m from the loop edge, carries a current of 35.0 A. What direction must the wire current have (left, or right) so that the net B field at the loop center becomes 5.7 Times 10^-5 T? Indicate current direction with an arrow. Ampere's currents A solenoid is wound as shown and carries a current as indicated by the arrows. What is the polarity of the left end face? (North/South) Four parallel wires, a, b, c, d, are placed at the corners of a square glassy beam as shown. Wires a and c carry anti-parallel currents as shown. Draw an arrow to indicate the direction of a current on b so that it repels wire a? What, then, would the interaction between b and c be? (A/R) If we want wire d to be attracted by a, mark its current direction in the diagram and indicate below its interactions with b and c? Force between d and b? (A/R) ; force between d and c? (A/R) on moving charges beam of protons moves on a circle of radius 0.250 m. The protons move perpendicular to a 0.300 T magnetic field entering the paper, (not shown) What is the speed of each proton? Determine the magnetic of the centripetal force that acts on each proton. Select any "proton" on the circle and mark with arrows the force acting on it and the tangential velocity direction (CW or CCW?) 7.17 Times 10^6 m/s; 3.44 Times 10^-13 N A square loop of wire 1234 is placed in a uniform 0.25 T magnetic field, as the drawing shows. Each side has a length of 0.32 m, and the current in the loop is 12 A in the direction shown. Determine: the magnitude of the torque on the loop (if any); the magnitude and direction of the forces on the writes 12, 23, 34, and 14 the total flux passing through the area 1234 0.307 Nm 0.96 N, etc ?

Explanation / Answer

North.

Beacuse magnetic filed produced by the solenoid is right to left.

so right acts as south pole and left acts as north pole.

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