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The magnetic field inside a long straight solenoid-carrying current ______. - Science

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प्रश्न

The magnetic field inside a long straight solenoid-carrying current ______.

विकल्प

  • is zero

  • decreases as we move towards its end

  • increases as we move towards its end

  • is the same at all points

MCQ
रिक्त स्थान भरें
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उत्तर

The magnetic field inside a long straight solenoid-carrying current is the same at all points.

Explanation:

The magnetic field inside the current-carrying solenoid is constant in magnitude and direction and acts along the axis of the solenoid.

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अध्याय 13: Magnetic Effects of Electric Current - Intext Questions [पृष्ठ २३०]

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एनसीईआरटी Science [English] Class 10
अध्याय 13 Magnetic Effects of Electric Current
Intext Questions | Q 3 | पृष्ठ २३०

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.)


State Fleming’s left hand rule.


Describe how you will locate a current-carrying wire concealed in a wall.


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


The diagram given below represents magnetic field caused by a current-carrying conductor which is: 

 

(a) a long straight wire
(b) a circular coil
(c) a solenoid
(d) a short straight wire 

 


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 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


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?

 

 


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


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°

 


Two coils A and B of insulated wire are kept close to each other. Coil A is connected to a galvanometer while coil B is connected to a battery through a key. What would happen if: 

a current is passed through coil B by plugging the key?  

Explain your answer mentioning the name of the phenomenon involved.

 


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.


Name the following diagram and explain the concept behind it.


State Fleming’s left-hand rule.


Differentiate between conductors and insulators.


Write Fleming’s left hand rule.


When current is parallel to a magnetic field, then force experience by the current-carrying conductor placed in a uniform magnetic field is ____________.


Which of the following factors affect the strength of force experience by current-carrying conduct in a uniform magnetic field?


A copper wire is held between the poles of a magnet

The current in the wire can be reversed. The pole of the magnet can also be changed over. In how many of the four directions shown can the force act on the wire?


Which of the following pattern correctly describes the magnetic field around a long straight wire carrying current?


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