Physics
Grade-10
Easy
Question
No force acts on a current-carrying conductor when it is placed
- Perpendicular to the magnetic field
- Parallel to the magnetic field
- Far away from the magnetic field
- Inside a magnetic field
Hint:
- Force is F=qvBsinA
- when A=0 so sinA=0
The correct answer is: Parallel to the magnetic field
- We know that when a current carrying conductor is placed in a magnetic field, a force is exerted on the conductor which can make the conductor move. The direction of the motion of the conductor represents the direction of the force acting on it. The direction of the force acting on the current carrying conductor is perpendicular to the direction of current as well as the magnetic field which we can find out by using Fleming's left-hand rule. But, no force acts on the conductor when it is kept parallel to the magnetic field.
- Force is F=qvBsinA
- when A=0 so sinA=0 ,hence F= 0
- hence force is zero when Parallel to the magnetic field
Related Questions to study
Physics
The force exerted on a current-carrying wire placed in a magnetic field is maximum when the angle between the wire and the direction of the magnetic field is
The force exerted on a current-carrying wire placed in a magnetic field is maximum when the angle between the wire and the direction of the magnetic field is
PhysicsGrade-10
Physics
A charged particle moves at a velocity v in a uniform magnetic field B. The magnetic force experienced by the particle is maximum
A charged particle moves at a velocity v in a uniform magnetic field B. The magnetic force experienced by the particle is maximum
PhysicsGrade-10
Physics
The force on a charged particle moving perpendicularly in an external magnetic field can be represented by the formula
The force on a charged particle moving perpendicularly in an external magnetic field can be represented by the formula
PhysicsGrade-10
Physics
A wire placed vertically between the poles of a horseshoe magnet, such that the north pole is to your left, carries a direct current flowing upwards. The wire will experience a force tending to deflect it to
A wire placed vertically between the poles of a horseshoe magnet, such that the north pole is to your left, carries a direct current flowing upwards. The wire will experience a force tending to deflect it to
PhysicsGrade-10
Physics
A positively charged particle, say an alpha particle projected towards the west, is deflected toward the north by a magnetic field. The direction of the magnetic field is
A positively charged particle, say an alpha particle projected towards the west, is deflected toward the north by a magnetic field. The direction of the magnetic field is
PhysicsGrade-10
Physics
A positive charge is moving upwards in a magnetic field that is directed towards the north. The particle will be deflected towards
A positive charge is moving upwards in a magnetic field that is directed towards the north. The particle will be deflected towards
PhysicsGrade-10
Physics
A wire of length L is placed in a magnetic field B; If the current in the wire is I, the maximum magnetic force on the wire is
A wire of length L is placed in a magnetic field B; If the current in the wire is I, the maximum magnetic force on the wire is
PhysicsGrade-10
Physics
The force exerted on a current-carrying wire placed in a magnetic field is zero when the angle between the wire and the direction of the magnetic field is
The force exerted on a current-carrying wire placed in a magnetic field is zero when the angle between the wire and the direction of the magnetic field is
PhysicsGrade-10
Physics
A magnetic field exerts no force on
A magnetic field exerts no force on
PhysicsGrade-10
Physics
The direction of the force on a current-carrying conductor in a magnetic field depends on
The direction of the force on a current-carrying conductor in a magnetic field depends on
PhysicsGrade-10
Physics
A charged particle moves at a velocity v in a uniform magnetic field B. The magnetic force experienced by the particle is
A charged particle moves at a velocity v in a uniform magnetic field B. The magnetic force experienced by the particle is
PhysicsGrade-10
Physics
In the statement of Fleming’s left-hand rule, what does the direction of the thumb represent?
In the statement of Fleming’s left-hand rule, what does the direction of the thumb represent?
PhysicsGrade-10
Physics
Which of the following cannot produce a uniform magnetic field?
Which of the following cannot produce a uniform magnetic field?
PhysicsGrade-10
Physics
Which of the following factors affect the strength of force experienced by a current-carrying conductor in a uniform magnetic field?
Which of the following factors affect the strength of force experienced by a current-carrying conductor in a uniform magnetic field?
PhysicsGrade-10
