मराठी

The Figure Shows a Solenoid Wound on a Core of Soft Iron. Will the End a Be a N Pole Or S Pole When the Current Flows in the Direction Shown? - Science

Advertisements
Advertisements

प्रश्न

The figure shows a solenoid wound on a core of soft iron. Will the end A be a N pole or S pole when the current flows in the direction shown?  

 

Advertisements

उत्तर

End A of the solenoid will be S pole because the direction of flow of current at this end is clockwise.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Magnetic Effects of Electric Current - Exercise 2 [पृष्ठ ८४]

APPEARS IN

लखमीर सिंह Physics (Science) [English] Class 10
पाठ 2 Magnetic Effects of Electric Current
Exercise 2 | Q 38 | पृष्ठ ८४

संबंधित प्रश्‍न

Why does a current carrying, freely suspended solenoid rest along a particular direction?


Draw a diagram to represent the magnetic field lines along the axis of a current carrying solenoid. Mark arrows to show the direction of current in the solenoid and the direction of magnetic field lines.


The following diagram shows a spiral coil wound on a hollow carboard tube AB. A magnetic compass is placed close to it. Current is switched on by closing the key.

  1. What will be the polarity at the ends A and B?
  2. How will the compass needle be affected? Give reason.


Why does a current carrying freely suspended solenoid rest along a particular direction? State the direction in which it rests.


A current carrying solenoid behaves like a ______.


Draw the pattern of magnetic field lines of a solenoid through which a steady current flows. What does the pattern of field lines inside the solenoid indicate?


Derive the expression for the heat produced due to a current ‘I’ flowing for a time interval ‘t’ through a resistor ‘R’ having a potential difference ‘V’ across its ends. With which name is the relation known? How much heat will an instrument of 12W produce in one minute if it is connected to a battery of 12V?


The diagram shows a current-carrying coil passing through a cardboard sheet. Draw three magnetic lines of force on the board.

State two factors on which magnitude of magnetic field at the centre depends.


What is a solenoid? Why do we usually keep its diameter small in comparison to its length?


Which of the following diagrams correctly shows the magnetic field produced by a current-carrying wire?


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


The diagram below shows a magnet moved near a coil along its axis. Which of the diagram shows correct flow of current during this motion?


What does the divergence of magnetic field lines near the ends of a current carrying straight solenoid indicate?


A circuit contains a battery, a variable resistor and a solenoid. The figure below shows the magnetic field pattern produced by the current in the solenoid.

  1. State how the magnetic field pattern indicates regions where the magnetic field is stronger.
  2. What happens to the magnetic field when the current in the circuit is reversed?

Ansari Sir was demonstrating an experiment in his class with the setup as shown in the figure below.

A magnet is attached to a spring. The magnet can go in and out of the stationary coil. He lifted the Magnet and released it to make it oscillate through the coil.
Based on your understanding of the phenomenon, answer the following question.

Is there any difference in the observations in the galvanometer when the Magnet swings in and then out of the stationary coil? Justify your answer.


Observe the given figure of a current-carrying solenoid and write the labels of A and B correctly.


For the current carrying solenoid as shown, draw magnetic field lines and give reason to explain that out of the three points A, B and C, at which point the field strength is maximum and at which point it is minimum? 


Refer to the image below and state how the magnetic field pattern indicates regions where the magnetic field is stronger outside the magnet. What happens to the magnetic field when the current in the circuit is reversed?


How is a solenoid prepared?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×