Home
Class 12
PHYSICS
On passing current through a solenoid. W...

On passing current through a solenoid. Which of its end behave as a north pole or south pole explain ?

Text Solution

Verified by Experts

When current flows from loop (coil) it behave as magnet. Its one face behave as N pole while opposite face will behave as S pole.
Which end of coil behave as N pole and which end behave as a S pole can be found by following method.
(1) When closed current loop is viewed normally and if the current seems to flow in clockwise direction then that side of the loop behaves as a south pole and the other side of the loop behaves as a north pole It is shown in figure.

(2) Similarly, if the current seems to flow in anticlockwise direction then the side of the loop towards eye behaves as a north pole and the other side as a south pole.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    KUMAR PRAKASHAN|Exercise Section A (Try yourself )|36 Videos
  • ELECTROMAGNETIC INDUCTION

    KUMAR PRAKASHAN|Exercise Section A HOTS|2 Videos
  • ELECTRIC CHARGES AND FIELDS

    KUMAR PRAKASHAN|Exercise SECTION D MCQS ASKED IN COMPETITIVE EXAMES (MCQS AKSED IN BOARD EXAM AND GUJCET)|14 Videos
  • ELECTROMAGNETIC WAVES

    KUMAR PRAKASHAN|Exercise BOARD.S QUESTION PAPER MARCH - 2020 (PART - B) SECTION - C|5 Videos

Similar Questions

Explore conceptually related problems

The current is flowing through solenoid, then solenoid acting as what ?

When no current is passed through a conductor,

Knowledge Check

  • When the north poles of two different magnets are placed near each other , then the force and when the north pole and the south pole are placed near each other the force of …….results.

    A
    attraction and attraction
    B
    attraction and repulsion
    C
    repulsion and attraction
    D
    repulsion and repulsion .
  • 2 A current is passed through a solenoid which has 5 cm diameter, 10 turns and 10 cm length. Now, near to one of its two ends, a circular loop of radius 2 cm is kept perpendicular to axis of solenoid. Then magnetic flux passing through this loop is ...... Wb. ( mu_0=4pixx10^(-7)TmA^(-1) and take pi^@ =10)

    A
    `3.2xx10^(-8)`
    B
    `3.2xx10^(-7)`
    C
    `3.2xx10^(-9)`
    D
    `3.2xx10^(-6)`
  • Similar Questions

    Explore conceptually related problems

    A (current vs time) graph of the current passing through a solenoid is shown in figure. For which time is the back electromotive force ( epsilon ) a maximum. If the back emf at t = 3s is e, find the back emf at 1 = 7 s, 15 s and 40 s. OA, AB and BC are straight line segments.

    A rod with rectangular cross section oscillates about a horizontal axis passing through one of its ends and it behaves like a seconds pendulum, its length will be

    A rod with rectangular cross section oscillates about a horizontal axis passing through one of its ends and it behaves like a seconds pendulum, its length will be

    Give the location of magnetic south pole.

    A solenoid is connected to a battery so that a steady current flows through it. If an iron core is inserted into the solenoid, will the current increase or decrease? Explain.

    (c) Must every magnetic configuration have a north pole and a south pole ? What about the field due to a toroid ?