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State Fleming’s left-hand rule. - Science

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प्रश्न

State Fleming’s left-hand rule.

लघु उत्तर
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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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पाठ 10: Electro-Magnetism - EXERCISE-10 (B) [पृष्ठ २४६]

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सेलिना Physics [English] Class 10 ICSE
पाठ 10 Electro-Magnetism
EXERCISE-10 (B) | Q 5. | पृष्ठ २४६

संबंधित प्रश्‍न

Which of the following property of a proton can change while it moves freely in a magnetic field? (There may be more than one correct answer.)


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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?


 List three ways in which the magnetic field strength of a current-carrying solenoid can be increased?


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


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.


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 


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State under what conditions force acting on a current carrying conductor which is freely suspended in a magnetic field can be maximum.


The north pole of Earth’s magnet is in the ____________.


A current flows in a wire running between the S and N poles of a magnet lying horizontally as shown in the figure below:

The force on the wire due to the magnet is directed ____________.


The strength of magnetic field around a current-carrying conductor is ____________.


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A current-carrying conductor of a certain length, kept perpendicular to the magnetic field experiences a force F. What will be the force if the current is increased four times, the length is halved and the magnetic field is tripled?


If the strength of the current flowing through a wire is increased, the strength of the magnetic field produced by it ______.


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