A metal bar of mass m=0.2 kg slides freely over two conducting rails separated by a distance W=1 meter. R A uniform magnetic field of strength B=0.1 Tesla is v applied between the rails as shown below. At time t=0, a switch is thrown to x=0 connect a battery of voltage V=10 Volts across the rails through a R=1000 resistor. a. Find the magnetostatic force on the bar after the switch is thrown. b. Neglecting friction and the self-inductance in the circuit, find the total distance the bar has traveled at t=10 seconds, assuming the bar is initially at rest when the switch is thrown. Note: as the bar moves, an induced emf gives rise to a damping force. Solve this problem to the total distance the bar has traveled at t=10 seconds. There are two ways to solve this problem. t=0 bar of mass m B 8 W

A metal bar of mass m=0.2 kg slides freely over two conducting rails separated by a distance W=1 meter. R A uniform magnetic field of strength B=0.1 Tesla is v applied between the rails as shown below. At time t=0, a switch is thrown to x=0 connect a battery of voltage V=10 Volts across the rails through a R=1000 resistor. a. Find the magnetostatic force on the bar after the switch is thrown. b. Neglecting friction and the self-inductance in the circuit, find the total distance the bar has traveled at t=10 seconds, assuming the bar is initially at rest when the switch is thrown. Note: as the bar moves, an induced emf gives rise to a damping force. Solve this problem to the total distance the bar has traveled at t=10 seconds. There are two ways to solve this problem. t=0 bar of mass m B 8 W

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter9: Measuring Instruments

Section: Chapter Questions

Problem 1RQ: To what is the turning force of a dArsonval meter movement proportional?

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