q5_key - abdc is constant 1.6 Ω fnd the magnitude and the...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
PHY-2054C-002, Fall 2008 Instructor: Dr. Bhattacharya Quiz #5 KEY , Tuesday, Oct 07 1. The conduction rod ab as shown in the figure makes a frictionless contact with metal rails ca and db . The apparatus is in a uniform magnetic field of 1.2 T, perpendicular to the plane of the figure. x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x v B 50 cm d b a c (a) Find the magnitude of the emf induced in the rod when it is moving toward the right with a speed of 10 m/s. ε = vLB = 10 · 0 . 5 · 1 . 2 V = 6 V (b) In what direction does the current flow in the rod ? According to Lenz’s law the induced current will flow in an anticlockwise direction (to create the induced flux coming out of the paper). (c) If the resistance of the circuit
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: abdc is constant 1.6 Ω, fnd the magnitude and the direction oF the Force requires to keep the rod moving toward the right with the same constant velocity 10 m/s. The rod will experience a Force due to the induced current in presence oF the magnetic feld. Since the induced current ²ows From b to a , the direction oF this Force is toward leFt with magnitude ± induced = ILB = ε R LB = 6 1 . 6 · . 5 · 1 . 2 N = 2 . 25 N ∴ in order to keep the rod moving with constant velocity one needs to apply an external Force oF magnitude 2.25 N toward right....
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern