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

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प्रश्न

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

एका वाक्यात उत्तर
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उत्तर १

According to Fleming's left hand rule, the force exerted on a current carrying conductor placed in a magnetic field is maximum when the conductor is placed perpendicular to the magnetic field. That is, the direction of the electric current and the direction of the magnetic field are perpendicular to each other.

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उत्तर २

When the direction of the current is perpendicular to the direction of the magnetic field, the force that a current-carrying conductor experiences in a magnetic field is greatest.

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पाठ 13: Magnetic Effects of Electric Current - Exercises [पृष्ठ २४१]

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एनसीईआरटी Science [English] Class 10
पाठ 13 Magnetic Effects of Electric Current
Exercises | Q 9 | पृष्ठ २४१

संबंधित प्रश्‍न

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


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.)


A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is ______.


State whether the following statement is true or false

The field at the centre of a long circular coil carrying current will be parallel straight lines.


State qualitatively the effect of inserting an iron core into a current-carrying solenoid.

 

Name the rule for finding the direction of magnetic field produced by a straight current-carrying conductor.


State the form of magnetic field lines around a straight current-carrying conductor.


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


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


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?


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 

 


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


A current-carrying conductor is held in exactly vertical direction. In order to produce a clockwise magnetic field around the conductor, the current should passed in the conductor:

(a) from top towards bottom
(b) from left towards right
(c) from bottom towards top
(d) from right towards left 


State Fleming's left-hand rule. Explain it with the help of labelled diagrams.


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


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.

 


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


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?


Observe the given figure of Fleming's Left Hand Rule and write the labels of 'A' and 'B':


Assertion (A): A current carrying straight conductor experiences a force when placed perpendicular to the direction of magnetic field.

Reason (R): The net charge on a current carrying conductor is always zero.


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