मराठी

For a current in a long straight solenoid N- and S-poles are created at the two ends. Among the following statements, the incorrect statement is - Science

Advertisements
Advertisements

प्रश्न

For a current in a long straight solenoid N- and S-poles are created at the two ends. Among the following statements, the incorrect statement is

पर्याय

  • The field lines inside the solenoid are in the form of straight lines which indicates that the magnetic field is the same at all points inside the solenoid

  • The field lines inside the solenoid are in the form of straight lines which indicates that the magnetic field is the same at all points inside the solenoid

  • The pattern of the magnetic field associated with the solenoid is different from the pattern of the magnetic field around a bar magnet

  • The N- and S-poles exchange position when the direction of current through the solenoid is reversed

MCQ
Advertisements

उत्तर

The pattern of the magnetic field associated with the solenoid is different from the pattern of the magnetic field around a bar magnet

Explanation - 

Option (a), (b) and (d) are correct. Only option (c) is incorrect because the pattern of magnetic fields due to solenoid and bar magnet is almost the same.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Magnetic Effects of Electric Current - Multiple Choice Questions [पृष्ठ ९८]

APPEARS IN

एनसीईआरटी एक्झांप्लर Science [English] Class 10
पाठ 13 Magnetic Effects of Electric Current
Multiple Choice Questions | Q 4. | पृष्ठ ९८

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.)


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.


Observe the following figure:

If the current in the coil A is changed, will some current be induced in the coil B? Explain.


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


 What are the various ways in which the strength of magnetic field produced by a current-carrying circular coil can be increased?


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?


What is the shape of field lines inside a current-carrying solenoid? What does the pattern of field lines inside a current-carrying solenoid indicate?


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


The force exerted on a current-carrying wire placed in a magnetic field is zero when the angle between the wire and the direction of magnetic field is: 

 45°
 60°
 90°
 180°

 


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 


Name three factors on which the magnitude of force on a current carrying conductor placed in a magnetic field depends and state how does the force depend on the factors stated by you.


State the unit of magnetic field in terms of the force experienced by a current carrying conductor placed in a magnetic field


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

  1. maximum
  2. minimum?

A flat coil ABCD is freely suspended between the pole of a U-shaped permanent magnet with the plane of coil parallel to the magnetic field.

Name an instrument which makes use of the principle stated above.


State whether a magnetic field is associated or not around a moving charge.


Write Fleming’s left hand rule.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×