Advertisements
Advertisements
प्रश्न
State and explain Maxwell's right-hand thumb rule.
उत्तर
Maxwell’s right-hand thumb rule indicates the direction of magnetic field if the direction of current is known.
According to this rule, if we grasp the current-carrying wire in our right hand so that our thumb points in the direction of current, the direction in which our fingers encircle the wire will give the direction of magnetic field lines around the wire.
When thumb points upwards, the curled fingers are anticlockwise. So, the direction of magnetic field is anticlockwise.
When thumb points downwards, the curled fingers are clockwise. So, the direction of magnetic field is clockwise.
APPEARS IN
संबंधित प्रश्न
Name the rule which gives the direction of induced current.
State and explain Fleming's right hand rule.
Name and state the rule to find the direction of:
current induced in a coil due to its rotation in a magnetic field.
A current through a horizontal power line flows from south to north direction. The direction of magnetic field line 0.5m above it is ____________.
The strength of each magnet reduces to half when it is cut along its length into the equal parts magnetic field strength of a solenoid. The polarity of the solenoid can be determined by ____________.
A positive charge is moving upwards in a magnetic field directed towards the north. The particle will be deflected towards ____________.
Who has stated the Right-hand Thumb Rule?
Choose the incorrect statement
A constant current flows in a horizontal wire in the plane of the paper from east to west as shown in Figure. The direction of magnetic field at a point will be North to South
|
Given below is a circuit to study the magnetic effect of electric current. ABCD is a cardboard kept perpendicular to the conductor XY. A magnetic compass is placed at the point P of the cardboard. P1 and P2 are the positions of the magnetic compass, before and after passing a current through XY respectively.
|
- Name the rule that is used to predict the direction of deflection of the magnetic compass.
- State the direction of current in the conductor (X to Y or Y to X) when the circuit is complete.
- If resistance R is increased, then what will be the effect on the magnetic lines of force around the conductor?
