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प्रश्न
Name the type of magnet with which the magnetic field pattern of a current-carrying solenoid resembles
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उत्तर
The magnetic field pattern of a current-carrying solenoid resembles with that of a bar magnet.
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संबंधित प्रश्न
State whether the following statement is true or false
The field at the centre of a long circular coil carrying current will be parallel straight lines.
State the rule to determine the direction of a force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it.
Name and state the rule to determine the direction of magnetic field around a straight current-carrying conductor.
Name any two factors on which the strength of magnetic field produced by a current-carrying solenoid depends. How does it depend on these factors?
What is a solenoid? Draw a sketch to show the magnetic field pattern produced by a current-carrying solenoid.
What type of core should be put inside a current-carrying solenoid to make an electromagnet?
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
The front face of a circular wire carrying current behaves like a north pole. The direction of current in this face of circular wire is:
(a) clockwise
(b) downwards
(c) anticlockwise
(d) upwards
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
In a statement of Fleming's left-hand rule, what do the following represent?
(a) direction of centre finger.
(b) direction of forefinger.
(c) direction of thumb.
State Fleming's left-hand rule. Explain it with the help of labelled diagrams.
State Fleming’s left-hand rule.
State under what conditions force acting on a current carrying conductor which is freely suspended in a magnetic field can be Zero.
A magnetic field directed in north direction acts on an electron moving in east direction. The magnetic force on the electron will act ____________.
What does the direction of thumb indicate in the right-hand thumb rule. In what way this rule is different from Fleming’s left-hand rule?
A simple motor is made in a school laboratory. A coil of wire is mounted on an axle between the poles of a horseshoe magnet, as illustrated.
In the example above, coil ABCD is horizontal and the battery is connected as shown.
- For this position, state the direction of the force on the arm AB.
- Why does the current in the arm BC not contribute to the turning force on the coil?
A copper wire is held between the poles of a magnet
The current in the wire can be reversed. The pole of the magnet can also be changed over. In how many of the four directions shown can the force act on the wire?
A copper conductor is placed over two stretched copper wires whose ends ate connected to a D.C. supply as shown in the diagram.
- What should be the magnetic poles at the points A and B lying on either side of the conductor to experience the force in the upward direction?
- Name the law used to find these polarities.
