Calculate the magnitude of the magnetic force per unit length between a pair of parallel wires separated by 2.90 m if they each carry a current of 3.30 A.

In a physics demonstration, two long parallel wires are separated by a distance of 2.15 cm. One wire carries a current of 1.70 A while the other carries a current of 3.35 A. The currents are in the same direction. (a) What is the magnitude of the force per unit length (in N/m) that one wire exerts on the other? N/m (b) Is the force attractive or repulsive? O attractive O repulsive O The magnitude is zero.

9 x 1021 electrons pass through the cross-section of a wire with a cross-sectional area of 9 mm2 in 1.4 minutes. What is the magnitude of the magnetic field formed at a distance of 36 cm from this wire? (Express your answer in the unit of µT)

A wire with a weight per unit length of 0.083 N/m is suspended directly above a second wire. The top wire carries a current of 29.9 A and the bottom wire carries a current of 59.5 A. Find the distance of separation between the wires so that the top wire will be held in place by magnetic repulsion. Answer in mm.

A proton enters a magnetic field in such a way that it is traveling perpendicularly to the magnetic field lines. If the proton moves in a circle of radius 125 mm, and feels a force of 5.88 x 10 -16 N, how fast is the proton traveling?

In a lightning bolt, 12 C of charge flows in a time of 5.7 x 10-3 s. Assuming that the lightning bolt can be represented as a long, straight line of current, what is the magnitude of the magnetic field at a distance of 29 m from the bolt?

A length L = 0.55 of a current-carrying wire is located within a magnetic field of magnitude 0.080 T (the field is directed perpendicularly inward in the figure, and is perpendicular to the direction of the current). The magnitude of the current is 8.5 amperes. What is the total force exerted on this length of wire? F = N X X X F₁ X X X X X X L X X X Bin X X X