A conducting bar of length l moves to the right on two frictionless rails. A uniform magnetic field directed into the page has a magnitude of 2.90 T. Assume l = 33 cm and R = 8.8 Ω.

(a) At what constant speed should the bar move to produce an 8.4 mA current in the resistor?

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Related questions

A conducting bar of length l moves to the right on two frictionless rails as shown in the figure. A uniform magnetic field directed into the page has a magnitude of 0.300T. Assume R=9.00 ohms and l=0.350 m. At what constant speed should the bar moves to produce an 8.50 mA current in the resistor?

bluegerbil743

A conducting bar of length l moves to the right on two frictionlessrails, as shown in the figure below. A uniform magnetic fielddirected into the page has a magnitude of 2.90 T. Assume script l =39 cm and R = 9.1 O.

http://www.webassign.net/sercp8/20-p-024.gif

(a) At what constant speed should the bar move to produce an 8.3 mAcurrent in the resistor?
m/s

What is the direction of this induced current?

(b) At what rate is energy delivered to the resistor?
mJ/s

(c) Explain the origin of the energy being delivered to theresistor.

The figure shows a zero-resistance rod sliding to the right on two zero-resistance rails separated by the distance L = 0.43 m . The rails are connectedby a 11.3-Ω resistor, and the entire system is in a uniform magnetic field with a magnitude of 0.740 T.