Concept explainers
The magnitude and direction of the magnetic force.
Answer to Problem 69GP
The magnitude of magnetic field is 0.2475N.
The force on the wire is pointed northerly and
Explanation of Solution
Given:
The length of the cable is
The current of the wire is
The earth magnetic field strength is
The angle of dip is
Formula used:
The expression for magnitude of the magnitude force exerted on the wire is,
Here,
Calculation:
The force
The direction of magnetic force can be found by using right hand rule.
Consider the earth magnetic field is pointing north which is horizontal component. Earth magnetic field has a dip of
The current in the wire is pointed to the eastward. Since the force due to magnetic field is perpendicular to earth magnetic field, the force on the wire is pointed northerly and
Conclusion:
Therefore, the magnitude of magnetic field is 0.2475 N and the direction of magnetic force on the wire is pointed northerly and
Chapter 20 Solutions
Physics: Principles with Applications
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