2. A rectangular loop of wire in free space joins point A(0, 1, 1) to point B(0, 3, 1) to point C(0, 3, 4) to point D(0, 1, 4) to point A. The wire carries a current of 6 mA, flowing in the az direction from B to C. A filamentary current of 15 A flows along the entire z axis in the az direction. (a) Find F on side BC. (b) Find Fon side AB. (c) Find Ftotal on the loop.

In the Bohr model of the hydrogen atom, an electron in the 8th excited state moves at a speed of 3.42 x 104 m/s in a circular path having a radius of 3.39 x 10-9 m. What is the effective current associated with this orbiting electron?

Problem 7: A solenoid is created by wrapping a L = 35 m long wire around a hollow tube of diameter D = 4.5 cm. The wire diameter is d = 0.75 mm. The solenoid wire is then connected to a power supply so that a current of I = 4.5 A flows through the wire. Randomized Variables L= 35 m D= 4.5 cm d = 0.75 mm I= 4.5 A Part (a) Write an expression for the number of turns, N, in the solenoid. You do not need to take into account the diameter of the wire in this calculation. N = | 7 8 9. JT НOME d 1^ AL 4 5 6. a h 1 2 3 j k + END - m P VO BАСKSРАСE CLEAR DEL Submit Hint Feedback I give up! Part (b) Calculate the number of turns, N, in the solenoid. Part (c) Write an expression for the length of the solenoid (L2) in terms of the diameter of the hollow tube D, the length of the wire L and the diameter of the wire d. Assume it is constructed by using only 1 layer of loops (note that most solenoids are actually constructed with many layers, to maximize the magnetic field density). Part (d)…

A caterpillar of length 6.00 cm crawls in the direction of electron drift along a 8.20-mm-diameter bare copper wire that carries a uniform current of 38.0 A. (a) What is the potential difference between the two ends of the caterpillar? (b) Is its tail positive or negative relative to its head? (c) How much time does the caterpillar take to crawl 2.30 cm if it crawls at the drift speed of the electrons in the wire? (The number of charge carriers per unit volume is 8.49 × 1028 m-3 and resistivity of copper is 1.69 × 10-8 Ω·m.)

Two VERY LONG wires are placed along parallel lines as shown below in the picture. LEFT (at Xı= 0) has a current going out of the page of value, I = 4 A. The current on the RIGHT (at X2= d) has a current going into the page of the page of value, 2 = 6 A. The point "P" is at the location (x=6.00cm, z=10.4cm) The wire ON THE d d Wire 1 Wire 2 a. Find the magnitude of the magnetic field due to wire 2 at the location of wire 1 The Biot-Savart law say the direction of the magnetic field at a field point located in a direction f (from source to field point) where a source wire carries a current in the direction î is îxî b. Find the unit directions for î and Î and perform the cross product to determine the direction of the magnetic field due to wire2 at the location of wire1. c. Using the formula format find the force per unit length in "Ij,k" = 1, I, x B, d. Find the magnitude of the magnetic field due to wire2 at the location of field point e. Find the unit directions for f and Î and…