English
Tamil Nadu Board of Secondary EducationHSC Science Class 12

An electron moves on a straight-line path XY as shown in the figure. The coil abcd is adjacent to the path of the electron. What will be the direction of the current, if any, induced in the coil? - Physics

Advertisements
Advertisements

Question

An electron moves on a straight-line path XY as shown in the figure. The coil abcd is adjacent to the path of the electron. What will be the direction of the current, if any, induced in the coil?

Options

  • The current will reverse its direction as the electron goes past the coil

  • No current will be induced

  • abcd

  • adcb

MCQ
Advertisements

Solution

The current will reverse its direction as the electron goes past the coil

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Electromagnetic Induction And Alternating Current - Evaluation [Page 257]

APPEARS IN

Samacheer Kalvi Physics - Volume 1 and 2 [English] Class 12 TN Board
Chapter 4 Electromagnetic Induction And Alternating Current
Evaluation | Q I. 1. | Page 257

RELATED QUESTIONS

It is desired to measure the magnitude of field between the poles of a powerful loud speaker magnet. A small flat search coil of area 2 cm2 with 25 closely wound turns, is positioned normal to the field direction, and then quickly snatched out of the field region. Equivalently, one can give it a quick 90° turn to bring its plane parallel to the field direction. The total charge flown in the coil (measured by a ballistic galvanometer connected to coil) is 7.5 mC. The combined resistance of the coil and the galvanometer is 0.50 Ω. Estimate the field strength of magnet.


What is electromagnetic induction?


When the magnet shown in the diagram below is moving towards the coil, the galvanometer gives a reading to the right. 

 

() What is the name of the effect being produced by the moving magnet?
(2) State what happens to the reading shown on the galvanometer when the magnet is moving away from the coil.
(3) The original experiment is repeated. This time the magnet is moved towards the coil at a great speed. State two changes you would notice in the reading on the galvanometer.


In which of the following case does the electromagnetic induction occur?

A loop of wire is held near a magnet.


Show that Lenz’s law is in accordance with the law of conservation of energy.


A closely wound circular coil of radius 0.02 m is placed perpendicular to the magnetic field. When the magnetic field is changed from 8000 T to 2000 T in 6 s, an emf of 44 V is induced in it. Calculate the number of turns in the coil.


A 50 cm long solenoid has 400 turns per cm. The diameter of the solenoid is 0.04 m. Find the magnetic flux linked with each turn when it carries a current of 1 A.


A cylindrical bar magnet is kept along the axis of a circular coil. If the magnet is rotated about its axis, then ____________.


A coil of one turn is made of a wire of certain length and then from the same length, a coil of two turns is made. If the same current is passed in both the cases, then the ratio of the magnetic inductions at their centres will be:


The charge will flow through a galvanometer of resistance 200Ω connected to a 400Ω circular coil of 1000 turns wound on a wooden stick 20 mm in diameter, if a magnetic field B = 0.012 T parallel to the axis of the stick decreased suddenly to zero, is near ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×