In previous chapters, we looked at how to determine the electric dipole moment for charge configurations that were asymmetric. Such configurations are called asymmetric electric dipoles, and when you place one of them in a uniform electric field it will experience not only a net torque, but also a net force. One way to create the analogous situation using magnetism is to have a wire loop in which there was different amounts of current in different parts of the loop. How might such a current loop be constructed (select all that apply)? O It could be one of the loops in a multi-loop circuit containing a different source of emf in each loop, but with each emf set to a different voltage O It is impossible to construct such a loop because it would violate the conservation of electric charge O It could be one of the loops in a multi-loop circuit containing a different source of emf in each loop, and with each emf set to the same voltage It could be done using a single source of emf and two resistors with the same resistor value connected in parallel O It could be done using a single source of emf and two resistors with different resistor values connected in parallel

Consider a long, horizontal Large Wire with current of 10 A running through it. We want to levitate a horizontal, thin, 0.50 m length of wire above it. If the thin wire has a mass of 10 grams, and a current of 300 mA, how far above the Large Wire will it hover (net force of zero) due to magnetic and gravitational forces? A. If the thin wire hovers above the Large Wire due to their magnetic fields, are their currents going the same direction, or opposite directions. Explain. B. Draw a diagram and label the directions of currents, and all other relevant quantities and vectors. C. Find the distance above the Large Wire the small thin wire will hover (net force of zero). D. Would your answers to parts A and C change if we wanted to find a distance below (rather than above) the Large Wire that the smaller thin wire could hover, due to their magnetic fields. Explain. Don't calculate any values but draw a new diagram and explain how this situation compares to the problem above.

A particle of charge -2.5 x 10ˉ8 C is moving with an instantaneous velocity of magnitude v = 4 x 10^4 m/s in the X - Y coodinate plane at an angle of 50° anticlockwise from the positive x-axis A) What is the magnitude and direction of the force exerted on this particle by a magnetic field with magnitude 2T in the x-direction? B) Repeat part a) but for the z-direction

can you help please. This is not and will not be graded

Starting from rest, an electron is accelerated through a region between two oppositely charged plates, as shown in Figure 1. The distance between the plates is 10 cm and the magnitude of the potential difference between them is 100 V. Immediately after exiting the region with the uniform electric field, the electron enters a region with a uniform magnetic field of 0.85 T, directed into the page. (a) Calculate the magnitude of the electric force on the electron. (b) Calculate the work done by the electric force on the electron. (c) Determine the electron's speed when it enters the magnetic field. (d) Determine the magnitude and direction of the magnetic force on the electron when it enters the magnetic field. (e) Suppose that the experiment was repeated with the locations of the positive and negative plates switched, and the electron was replaced with a proton, but nothing else was changed. Calculate R,/R., the ratio of the radius of the proton's path in the magnetic field (R,) to that…

An electron moves at a speed of 810 m/s perpendicular to the direction of a uniform magnetic field of 0.4 T. What is the radius of the electron's circular orbit in units of nanometers (1 m = 10° nm)? (in units of nanometers)

(a) A 0.140-kg baseball, pitched at 40.0 m/s horizontally and perpendicular to the Earth’s horizontal 5.00×10−5 T field, has a 100-nC charge on it. What distance is it deflected from its path by the magnetic force, after traveling 30.0 m horizontally? (b) Would you suggest this as a secret technique for a pitcher to throw curve balls?