Directions: In the following questions, a statement of assertion (A) ...
When a current carrying conductor is placed in a magnetic field, it experiences a force except when it is placed parallel to the magnetic field. The force acting on a current carrying conductor in a magnetic field is due to interaction between the magnetic field produced by the current carrying conductor and the external magnetic field in which the conductor is placed.
Directions: In the following questions, a statement of assertion (A) ...
Assertion (A): A current carrying conductor experiences a force in a magnetic field.
Reason (R): The force acting on a current carrying conductor in a magnetic field is due to interaction between the magnetic field produced by the current carrying conductor and the external magnetic field in which the conductor is placed.
Explanation:
- When a current-carrying conductor is placed in a magnetic field, it experiences a force. This phenomenon is known as the magnetic effect of electric current or the Lorentz force.
- The force experienced by the conductor can be explained by the interaction between the magnetic field produced by the current-carrying conductor and the external magnetic field in which the conductor is placed.
- According to Ampere's law, a current-carrying conductor produces a magnetic field around it. The direction of this magnetic field is given by the right-hand rule, where the thumb points in the direction of the current and the curled fingers give the direction of the magnetic field.
- When the conductor is placed in an external magnetic field, the two magnetic fields interact with each other. As a result, a force is exerted on the conductor perpendicular to both the current direction and the magnetic field direction.
- The magnitude of this force can be determined using the equation F = BIL, where F is the force, B is the magnetic field strength, I is the current, and L is the length of the conductor in the magnetic field.
- This force causes the conductor to move or deflect, depending on the direction of the force and the orientation of the conductor.
- This phenomenon has various applications, such as electric motors, electromagnets, and magnetic compasses.
Conclusion:
- Both the assertion (A) and the reason (R) are true.
- The reason (R) is the correct explanation of the assertion (A).
- Therefore, option (B) is the correct answer.