A conducting bar rests to complete a circuit and immersed on a uniform magnetic field of B = 0.44 T. It is made of silver, has a length of 0.56 m, and diameter of 9 mm. The resistor on the circuit has 24 ohms resistance. Calculate the initial acceleration (in m/s2) of the bar, when the resistor's resistance is decreased instantaneously to 3 ohms (due to short circuit). (Hint: you may need to calculate the maximum voltage first where the bar is in the state of equilibrium). Note: Final answer in ZERO decimal place. Use conventional current. Use pi= 3.14. Use the following: resistivity of silver 1.47x10-8 m density of silver = 10500 kg/m3

A conducting bar rests to complete a circuit and immersed on a uniform magnetic field of B = 0.44 T. It is made of silver, has a length of 0.56 m, and diameter of 9 mm. The resistor on the circuit has 24 ohms resistance. Calculate the initial acceleration (in m/s2) of the bar, when the resistor's resistance is decreased instantaneously to 3 ohms (due to short circuit). (Hint: you may need to calculate the maximum voltage first where the bar is in the state of equilibrium). Note: Final answer in ZERO decimal place. Use conventional current. Use pi= 3.14. Use the following: resistivity of silver 1.47x10-8 m density of silver = 10500 kg/m3

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 69AP: The conducting rod shown in the accompanying figure moves along parallel metal rails that are 25-cm...

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Concept explainers

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.

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A conducting bar rests to complete a circuit and immersed on a uniform magnetic field of B = 0.44 T. It is made of silver, has a length of 0.56 m, and
diameter of 9 mm. The resistor on the circuit has 24 ohms resistance. Calculate the initial acceleration (in m/s2) of the bar, when the resistor's resistance
is decreased instantaneously to 3 ohms (due to short circuit). (Hint: you may need to calculate the maximum voltage first where the bar is in the state of
equilibrium).
Note: Final answer in ZERO decimal place. Use conventional current. Use pi = 3.14.
Use the following:
resistivity of silver = 1.47x10-8 m
density of silver = 10500 kg/m³
V
R
B
X X X X X
X X X

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