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When the direction of current through the conductor is reversed, the direction of
- a)force is also reversed
- b)force remains same
- c)electromagnetic field is reversed
- d)electric field is also reversed
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
When the direction of current through the conductor is reversed, the d...
Stretch out your hand as per Fleming left-hand rule and then tilt your hand upside down. You can see that the direction of mag field is the same, but the direction of current has reversed as per the question. also, the thumb goes downwards i.e opposite to initial direction. hence, we can see that the direction of force has been reversed.
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When the direction of current through the conductor is reversed, the d...
When the direction of current through a conductor is reversed, the direction of force acting on the conductor is also reversed. This phenomenon is known as the right-hand rule for magnetic force.
Explanation:
1. The right-hand rule:
- According to the right-hand rule, if you point your thumb in the direction of the current flow and wrap your fingers around the conductor, the direction in which your fingers curl represents the direction of the magnetic field lines around the conductor.
- Now, if you extend your index finger perpendicular to both your thumb (representing current) and fingers (representing magnetic field lines), the direction in which your index finger points represents the direction of the force acting on the conductor.
- The force experienced by the conductor is perpendicular to both the current direction and the magnetic field direction.
2. Reversing the current direction:
- When the direction of current through the conductor is reversed, the magnetic field lines surrounding the conductor also reverse their direction.
- As a result, the force acting on the conductor also changes its direction according to the right-hand rule.
- The force will now act in the opposite direction compared to the original current flow.
3. Example:
- Let's consider a simple scenario where a straight conductor is carrying current from left to right, and a magnetic field is directed into the plane of the paper.
- According to the right-hand rule, the force experienced by the conductor will be upwards.
- Now, if the direction of the current is reversed, i.e., current flows from right to left, the magnetic field lines also reverse their direction.
- Consequently, the force acting on the conductor will also reverse its direction and become downwards.
In conclusion, when the direction of current through a conductor is reversed, the direction of the force acting on the conductor is also reversed. This can be explained using the right-hand rule, where the force is perpendicular to both the current direction and the magnetic field direction.
Explanation:
1. The right-hand rule:
- According to the right-hand rule, if you point your thumb in the direction of the current flow and wrap your fingers around the conductor, the direction in which your fingers curl represents the direction of the magnetic field lines around the conductor.
- Now, if you extend your index finger perpendicular to both your thumb (representing current) and fingers (representing magnetic field lines), the direction in which your index finger points represents the direction of the force acting on the conductor.
- The force experienced by the conductor is perpendicular to both the current direction and the magnetic field direction.
2. Reversing the current direction:
- When the direction of current through the conductor is reversed, the magnetic field lines surrounding the conductor also reverse their direction.
- As a result, the force acting on the conductor also changes its direction according to the right-hand rule.
- The force will now act in the opposite direction compared to the original current flow.
3. Example:
- Let's consider a simple scenario where a straight conductor is carrying current from left to right, and a magnetic field is directed into the plane of the paper.
- According to the right-hand rule, the force experienced by the conductor will be upwards.
- Now, if the direction of the current is reversed, i.e., current flows from right to left, the magnetic field lines also reverse their direction.
- Consequently, the force acting on the conductor will also reverse its direction and become downwards.
In conclusion, when the direction of current through a conductor is reversed, the direction of the force acting on the conductor is also reversed. This can be explained using the right-hand rule, where the force is perpendicular to both the current direction and the magnetic field direction.
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When the direction of current through the conductor is reversed, the direction ofa)force is also reversedb)force remains samec)electromagnetic field is reversedd)electric field is also reversedCorrect answer is option 'A'. Can you explain this answer?
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