Advertisements
Advertisements
प्रश्न
State under what conditions force acting on a current carrying conductor which is freely suspended in a magnetic field can be Zero.
Advertisements
उत्तर
This force F is zero when the magnetic field due to flow of current in the conductor is parallel to the given magnetic field B.
संबंधित प्रश्न
Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the front wall, is deflected by a strong magnetic field to your right side. What is the direction of magnetic field?
A soft iron bar is inserted inside a current-carrying solenoid. The magnetic field inside the solenoid:
(a) will decrease
(b) will increase
(c) will become zero
(d) will remain the same
The magnetic field lines in the middle of the current-carrying solenoid are?
(a) circles
(b) spirals
(c) parallel to the axis of the tube
(d) perpendicular to the axis of the tube
A current-carrying conductor is held in exactly vertical direction. In order to produce a clockwise magnetic field around the conductor, the current should passed in the conductor:
(a) from top towards bottom
(b) from left towards right
(c) from bottom towards top
(d) from right towards left
A current-carrying conductor is placed perpendicularly in a magnetic field. Name the rule which can be used to find the direction of force acting on the conductor.
Which way does the wire in the diagram below tend to move?
Differentiate between conductors and insulators.
State whether a magnetic field is associated or not around a moving charge.
A current-carrying conductor of a certain length, kept perpendicular to the magnetic field experiences a force F. What will be the force if the current is increased four times, the length is halved and the magnetic field is tripled?
Which of the following pattern correctly describes the magnetic field around a long straight wire carrying current?
