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When an electric current is flowing through a conductor it
  • a)
    Experiences a force when it is in a magnetic field
  • b)
    Experience no force when it is in a magnetic field
  • c)
    Experiences the force only if the field is of electromagnetic nature
  • d)
    All of the above
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
When an electric current is flowing through a conductor ita)Experience...
Experiences a force when it is in a magnetic field
This question is part of UPSC exam. View all Class 7 courses
Most Upvoted Answer
When an electric current is flowing through a conductor ita)Experience...
Answer:


When an electric current flows through a conductor, it experiences a force when it is in a magnetic field. This phenomenon is known as the magnetic force or the Lorentz force. Let's understand this in detail:

1. Magnetic Field:
A magnetic field is a region in which a magnetic force can be detected. It is produced by moving charges, such as electric currents. When a current passes through a conductor, a magnetic field is created around the conductor.

2. Magnetic Force:
When a current-carrying conductor is placed in a magnetic field, the magnetic field exerts a force on the conductor. This force is perpendicular to both the direction of current flow and the magnetic field. It follows Fleming's left-hand rule, which states that if the thumb points in the direction of the current, and the fingers point in the direction of the magnetic field, then the palm of the hand will experience a force in the direction of the motion.

3. Lorentz Force:
The force experienced by the current-carrying conductor in a magnetic field is known as the Lorentz force. It can be calculated using the formula:
F = BILsinθ
Where,
F is the force experienced by the conductor,
B is the magnetic field strength,
I is the current flowing through the conductor,
L is the length of the conductor in the magnetic field, and
θ is the angle between the direction of the current and the magnetic field.

4. Direction of Force:
The direction of the force experienced by the current-carrying conductor depends on the direction of the current and the magnetic field. If the current and the magnetic field are parallel, there will be no force experienced by the conductor. If they are perpendicular, the force will be maximum.

In conclusion, when an electric current flows through a conductor, it experiences a force when it is in a magnetic field. This force is known as the magnetic force or the Lorentz force. It is perpendicular to the direction of current flow and the magnetic field.
Community Answer
When an electric current is flowing through a conductor ita)Experience...
Experience a force when it is in a magnetic field.
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When an electric current is flowing through a conductor ita)Experiences a force when it is in a magnetic fieldb)Experience no force when it is in a magnetic fieldc)Experiences the force only if the field is of electromagnetic natured)All of the aboveCorrect answer is option 'A'. Can you explain this answer?
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