मराठी

State Fleming’S Left-hand Rule. - Science

Advertisements
Advertisements

प्रश्न

State Fleming’s left-hand rule.

Advertisements

उत्तर

Fleming’s left hand rule states that if we arrange the thumb, the centre finger, and the forefinger of the left hand at right angles to each other, then the thumb points towards the direction of the magnetic force, the centre finger gives the direction of current, and the forefinger points in the direction of magnetic field.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Magnetic Effects of Electric Current - Intext Questions [पृष्ठ २३३]

APPEARS IN

एनसीईआरटी Science [English] Class 10
पाठ 13 Magnetic Effects of Electric Current
Intext Questions | Q 1 | पृष्ठ २३३

संबंधित प्रश्‍न

When is the force experienced by a current-carrying conductor placed in a magnetic field largest?


Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the front wall, is deflected by a strong magnetic field to your right side. What is the direction of magnetic field?


Name and state the rule to determine the direction of magnetic field around a straight current-carrying conductor.


Draw the magnetic lines of force due to a circular wire carrying current. 


State and explain the Clock face rule for determining the polarities of a circular wire carrying current.


A soft iron bar is inserted inside a current-carrying solenoid. The magnetic field inside the solenoid:

(a) will decrease
(b) will increase
(c) will become zero
(d) will remain the same


When is the force experienced by a current-carrying conductor placed in a magnetic field largest?


 Name one device whose working depends on the force exerted on a current-carrying coil placed in a magnetic field. 


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 


In the simple electric motor of figure given below, the coil rotates anticlockwise as seen by the eye from the position X when current flows in the coil  

 

Is the current flowing clockwise or anticlockwise around the coil when viewed from above? 


 force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it. 


State condition when magnitude of force on a current carrying conductor placed in a magnetic field is zero?


State two ways to increase the speed of rotation of a D.C. motor.


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. 


When do you use (i) Fleming's left hand rule, and (ii) Fleming's right hand rule?

Differentiate between conductors and insulators.


The shape of the magnetic field lines produced by a current-carrying conductor is ____________.


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


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 ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×