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प्रश्न
Describe how you will locate a current-carrying wire concealed in a wall.
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उत्तर
We know that a current-carrying wire produces magnetic field. Therefore, we can locate a current-carrying wire concealed in a wall by detecting the magnetic field produced by the wire. It is done with the help of a compass.
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संबंधित प्रश्न
Which of the following correctly describes the magnetic field near a long straight wire?
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.
State Fleming’s left hand rule.
What concealed do you get from the observation that a current-carrying wire deflects a compass needle placed near it?
Name the rule for finding the direction of magnetic field produced by a straight current-carrying conductor.
State whether the following statement is true or false:
The magnetic field inside a long circular coil carrying current well be parallel straight lines.
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?
Name the type of magnet with which the magnetic field pattern of a current-carrying solenoid resembles
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.
If the current in a wire is flowing in the vertically downward direction and a magnetic field is applied from west to east, what is the direction of force in the wire?
State condition when magnitude of force on a current carrying conductor placed in a magnetic field is zero?
State the unit of magnetic field in terms of the force experienced by a current carrying conductor placed in a magnetic field
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
Name and state the rule of determine the direction of force experienced by a current carrying straight conductor placed in a uniform magnetic field which is perpendicular to it.
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?
Observe the given figure of Fleming's Left Hand Rule and write the labels of 'A' and 'B':
An alpha particle enters a uniform magnetic field as shown. The direction of force experienced by the alpha particle is ______.
If the strength of the current flowing through a wire is increased, the strength of the magnetic field produced by it ______.
