Advertisements
Advertisements
प्रश्न
State and explain the clock-face rule for determining the polarities of a circular wire carrying current.
Advertisements
उत्तर
This rule is used to determine the polarity of two faces of a current-carrying circular coil.
According to the clock-face rule, if we look at one face of the coil through which a current is passing, we have the following conclusions:
- If the current around the face of the coil flows in a clockwise direction, that face of the coil will be the south pole.
- If the current around the face of the coil flows in an anticlockwise direction, that face of the coil will be north pole.
संबंधित प्रश्न
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.
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
What happens when a current-carrying conductor is placed in a magnetic field?
Which way does the wire in the diagram below tend to move?
i) Which principle is explained in this figure?
ii) Which rule is used to find out the direction of a force in this principle?
iii) In which machine this principle is used? Draw a diagram showing working of that machine
The north pole of Earth’s magnet is in the ____________.
A current-carrying conductor is held in an exactly vertical direction. In order to produce a clockwise magnetic field around the conductor, the current should be passed in the conductor:
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?
