
Concept explainers
The angle of the current carrying wire with the magnetic field.

Answer to Problem 11STP
The angle made by the wire with the field is
Explanation of Solution
Given:
A wire, 14 cm long, having a resistance of 18 Ω is attached to a 5.8-V battery. It is kept in a uniform magnetic field of strength 0.85 T, so that it experiences a force of 22 mN.
Formula Used:
The force acting on a wire carrying current is dependent on the strength of magnetic field, the current, length of the wire and the angle which the wire makes with the magnetic field. It is mathematically expressed as,
From this, the angle of inclination can be found as,
Here, when the wire with a particular resistance is connected to a given voltage supply, the current in the wire can be calculated using the Ohm’s law as,
Calculation:
Here, the current in the wire can be calculated using the supply voltage
Now, for the given strength of magnetic field
Conclusion:
Therefore, angle of inclination of the current carrying wire with the magnetic field is
Chapter 24 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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