The moving rod in the figure is 13.5 cm long and is pulled at a speed of 16.0 cm/s. Force on electron a) If the magnetic field is 0.790 T, calculate the emf developed. Express your answer to three significant figures and include appropriate units. b) Calculate the magnitude of the electric field felt by the electron rod. Express your answer to three significant figures and include appropriate units. c) Determine the direction of the electric field felt by electrons in the rod. Express your answer as either: up, right, down, or left.

Consider the velocity selector diagrammed below. If the charged particle ejected by the heated filament passes through the capacitor plates undeflected with a speed of 2.0 x 105 m/s,what is the magnetic field strength if the electric field strength is 800 volts/m?   a. 2.0 mT   b. 0.00 mT   c. 6.0 mT   d. 8.0 mT   e. 4.0 mT

6. A wire is formed so as to make a circular loop connecting two long, straight sections as shown in Figure 6. If the radius of the loop is R = 20 cm and the wire carries a current I = 2.4 A, what are the magnitude and direction of the magnetic field at the center of the loop? I If needed, you can use the magnetic field due to a straight wire, and and the magnetic field at the center of a loop derived from Ampere's law. (Hint: The two long sections form one long straight current- carrying wire.)

A square portion of a circuit is in a region with an homogeneous magnetic field. The length of the sides is L = 10 cm. The current through the circuit is 1.5 Amp. As a result there is a net force of 0.15 N acting on the wires of circuit. What is the value of the magnetic field? AWhat direetion dees the net feree peint? Te the right L

A 68.0-cm-diameter cyclotron uses a 450 V oscillating potential difference between the dees. Part A What is the maximum kinetic energy of a proton if the magnetic field strength is 0.740 T? Express your answer with the appropriate units. Value Submit Part B μA Submit Units Request Answer IV—| ΑΣΦ 3 How many revolutions does the proton make before leaving the cyclotron? ? Request Answer ?

An electron accelerated from rest through a voltage of 770 V enters a region of constant magnetic field. Part A If the electron follows a circular path with a radius of 18 cm, what is the magnitude of the magnetic field? Express your answer using two significant figures. % AED ? B- T Submit Request Answer

Please help.

A body with a negative charge q  (q < 0) and velocity v enters inbetween capacitor plates with an induced magnetic field (B ->) as described in the drawing.A. In the described case, which plate would the particle hit?B. Given the capacitor has a voltage V and that the distance between the plates is D. provide the expression for the electric field's strength?.C. In which direction should the electric field be in order for the particle to continue its movement in a straight line And avoid the panels, what is the polarity of the plates in that case?

An electron travels with speed 1.3×107 m/s between the two parallel charged plates shown in the figure. The plates are separated by 1.0 cm and are charged by a 200 V battery. Part A What magnetic field strength will allow the electron to pass between the plates without being deflected?Express your answer in tesla. Part B What is the direction of the magnetic field?A UpB DownC Out of the pageD Into the page

electricity and magnetic physics