A current I is passed through a wire. A second wire of length L is moving perpendicular to the magnetic field generated by the first wire (see sketch below) with velocity v at a distance d. Consider the magnetic field B to be constant over the range / of motion of the second wire (i.e. d > 1). You need to calculate the potential generated between the ends of the second wire. Please select statements that would describe your approach to solving the problem. Wire 1 Wire 2 d a. Use an expression for the electromotive force (EMF) induced by the magnetic field. b. Use the expression for the magnetic force between two current-carrying wires. C. Use the expression for the magnetic field of a current-carrying wire.

Force between Parallel Wires You have two wires with current running through them (see image below). The wires are a distance d apart. Current 1 = 3.25 A Current 2 = 2.85 A d = 0.370 m What is the force per length between the wires? Put your answer in μΝ microNewtons/m (· :). m If the force per length is repulsive, put in a negative sign. If the force per length is attractive, leave your answer positive. Your Answer: Answer Wire 1 Current 1 Wire 2 Current 2

A closed current path is made from two different circular arcs as shown in the figure below. The larger arc has radius 3.0 cm and covers one quarter of the circle, and the smaller arc has radius 1.0 cm and covers the remaining three quarters of the circle. If the current is 1.5 A going counterclockwise, what is the magnitude of the B-field at the center of the circular arcs? Express your answer to the nearest µT.

As shown in the figure, in the magnetic field directed inwards from the page plane, the current I passes on the bent wire with long edge, which is a, and with short edge, which is d. Write the net magnetic force on the wire in vector and find the direction.

A particle of mass “M” and charge “+Q” Travels at a velocity “V” in a plane perpendicular to a Magnetic Field of magnitude “B” as shown in the Picture. The particle will experience motion on a circular path. (not the question just context, also the pic is for probelm 1.) Assume similar conditions as problem 1 but now the proton, moves along the magnetic field undeflected. This new behavior can only be explained if there exist an external electric field in addition to the magnetic field. What is the magnitude and direction of such field? (you can disregard gravity) (prob 2 is the question:) sorry if its confusing)

Question 1. Plot a Graph with the data in Table 2, use Magnetic Force as the vertical axis and Current as the horizontal axis. Perform a linear least squares fit on the Graph, record the slope, intercept, and correlation coefficient in the Table 3. [Refer to Appendix 3_ Graphical Analysis of Experiment Results.docx]. Assume the horizontal copper trace on the Magnetic Force Board perfectly perpendicular to magnetic field, determine the magnitude of the magnetic field B, show your calculation in Table 3. Current (A) Table 2 0 0.25 0.5 0.75 1 -0.5 -1 Table 3 Mass of Magnet Assembly (gram) (Measured from scale) 0.000 0.039 0.080 0.122 0.162 -0.094 -0.222 Graph: Measure magnetic force versus Current Slope: Intercept: Correlation coefficient: Calculate magnetic field strength from the slope of your graph: Magnetic Force FB (Newton) 0 0.3822 0.784 1.1956 1.5876 -0.9212 -2.1756

The linear DC machine shown in Figure below has a battery voltage of VB = 11 V, and an internal resistance of R = 1.40. The magnitude of the uniform magnetic field is 1.4 T and into the page. The length of the conducting wire in the magnetic field is 0.8 m. What is the steady-state velocity (m/s) at no load conditions? Provide your answer with 1 decimal place. t= 0s R B VB

Part of a single rectangular loop of wire with dimensions shown in the (Figure 1) is situated inside a region of uniform magnetic field of 0.260 T. The total resistance of the loop is 0.680 Ω. Calculate the force required to pull the loop from the field (to the right) at a constant velocity of 6.60 m/s. Neglect gravity. Express your answer to three significant figures and include the appropriate units.

The plane of a square coil of wire is perpendicular to the direction of a magnetic field. The coil has N turns, a length and width of L, and a total resistance of R. Show how to find an equation for the rate of change of B needed to produce some current, I. (Find ?̇ as a functionof the variables given)

Suppose for a charge q moving in a magnetic field, the velocity i yields the maximul value of the force on it. If we denote the maximum force by F what is the magnitude of the magnetic field B? Use Fand v instead of F and v. Magnetic field B