मराठी

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. - Science

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प्रश्न

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.

पर्याय

  • True

  • False

MCQ
चूक किंवा बरोबर
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उत्तर

This statement is true.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Magnetic Effects of Electric Current - Exercises [पृष्ठ २४०]

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एनसीईआरटी Science [English] Class 10
पाठ 13 Magnetic Effects of Electric Current
Exercises | Q 6.3 | पृष्ठ २४०

संबंधित प्रश्‍न

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


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


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


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


The magnetic field lines in the middle of the current-carrying solenoid are?

(a) circles
(b) spirals
(c) parallel to the axis of the tube
(d) perpendicular to the axis of the tube


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.


State two ways to increase the force on a current-carrying conductor 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 


What is the force on a current-carrying wire that is parallel to a magnetic field? Give reason for your answer. 


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: 

the current is stopped by removing the plug from the key? 

Explain your answer mentioning the name of the phenomenon involved. 


How will the direction of force be changed, if the current is reversed in the conductor placed in a magnetic field?


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


i) Which principle is explained in this figure?
ii) Which rule is used to find out the direction of a force in this principle?
iii) In which machine this principle is used? Draw a diagram showing working of that machine


The following diagram shows two parallel straight conductors carrying the same current. Copy the diagram and draw the pattern of the magnetic field lines around them showing their directions. What is the magnitude of the magnetic field at a point 'X' which is equidistant from the conductors? Give justification for your answer.


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


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


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


The diagram below shows a free conductor AB is kept in a magnetic field and is carrying current from A to B. (To avoid confusion complete path of the circuit is not shown) The direction of the force experienced by the conductor will be:


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