Concept explainers
The magnitude of current flowing and the direction of the magnetic field.
Answer to Problem 73GP
Current in the bar is
Explanation of Solution
Given:
Length of the bar is
Formula used:
According to the third equation of motion,
Magnetic force is calculated as
Calculation:
Acceleration due to the magnetic force is
Net force on the bar is,
Thus, current on the bar is,
Using the right-hand rule, the current is towards the expanding circuit, the magnetic force is thus in the downward direction.
Conclusion:
Current in the bar is
Chapter 20 Solutions
Physics: Principles with Applications
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