A thin uniform conducting disc of radius r and mass m rests on a horizontal tabletop where a uniform magnetic field of induction B nointing vertically upwards exists. Coefficient of friction between the disc and the tabletop is u. Two points P, and P, on the rim of the disc are connected with two flexible wires, which facilitate a current to flow through the disc. The contact points P1 and P2 subtend an angle 0 at the centre of the disc. How much minimum current must flow through the disc so that it begins to slide? Acceleration of free fall is g. s: umg B P2 P1 I

A thin uniform conducting disc of radius r and mass m rests on a horizontal tabletop where a uniform magnetic field of induction B nointing vertically upwards exists. Coefficient of friction between the disc and the tabletop is u. Two points P, and P, on the rim of the disc are connected with two flexible wires, which facilitate a current to flow through the disc. The contact points P1 and P2 subtend an angle 0 at the centre of the disc. How much minimum current must flow through the disc so that it begins to slide? Acceleration of free fall is g. s: umg B P2 P1 I

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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