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प्रश्न
State Fleming’s left-hand rule.
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उत्तर
Stretch the forefinger, middle finger, and the thumb of your left hand mutually perpendicular to each other. If the forefinger indicates the direction of the magnetic field and the middle finger indicates the direction of the current, then the thumb will indicate the direction of motion of the conductor.
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संबंधित प्रश्न
The magnetic field in a given region is uniform. Draw a diagram to represent it.
What concealed do you get from the observation that a current-carrying wire deflects a compass needle placed near it?
Describe how you will locate a current-carrying wire concealed in a wall.
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The magnetic field associated with a current-carrying straight conductor is in anticlockwise direction. If the conductor was held along the east-west direction, what will be the direction of current through it? Name and state the rule applied to determine the direction of current?
For Fleming's left-hand rule, write down the three things that are 90° to each other, and next to each one write down the finger or thumb that represents it.
A horizontal wire carries a current as shown in Figure below between magnetic poles N and S:
Is the direction of the force on the wire due to the magnet:
(a) in the direction the current
(b) vertically downwards
(c) opposite to the current direction
(d) vertically upwards
A flat coil ABCD is freely suspended between the pole pieces of a U-shaped permanent magnet with the plane of coil parallel to the magnetic field.
When will the couple acting on the coil be
- maximum
- minimum?
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?
