Home
Class 12
PHYSICS
A short bar magnet is dropped through a ...

A short bar magnet is dropped through a coil of wire of similar length. Which one of the graphs below shows best how the current through the coil varies with time?

Text Solution

Verified by Experts

D. Because graph D shows best how the current flows through the coil varies with time. It depends on the nature of cause that produces it.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    NEW JOYTHI PUBLICATION|Exercise CONTINUOUS EVALUATION (ASSIGNMENTS)|2 Videos
  • ELECTROMAGNETIC INDUCTION

    NEW JOYTHI PUBLICATION|Exercise PREVIOUS YEAR QUESTIONS|2 Videos
  • ELECTROMAGNETIC INDUCTION

    NEW JOYTHI PUBLICATION|Exercise PRACTICE PROBLEMS FOR SELF ASSESSMENT|3 Videos
  • ELECTRIC CHARGES AND FIELDS

    NEW JOYTHI PUBLICATION|Exercise Competitive Exam Corner|20 Videos
  • ELECTROMAGNETIC WAVES

    NEW JOYTHI PUBLICATION|Exercise COMPETITIVE EXAM CORNER|16 Videos

Similar Questions

Explore conceptually related problems

A solenoid with large number of turns is in a closed circuit and a short bar magnet is dropped through each with its length along the axis. State the acceleration of the falling magnet when it is : a. Well above A b. At the end A c. At the middle d. At the end B e. Far away, down, from B

A constant current exists in an inductor coil connected to a battery. The coil is short circuited and the battery is removed. Show that the charge flown through the coil after the short circuiting is the same as that which flows in one time constant before the short circuiting.

The current (I) in the inductance is varying with time according to the plot shown in figureWhich one of the following is the correct variation of voltage with time in the coil?

A wire of length 2m carries a current of 1A is bend to form a circle. The magnetic moment of the coil is:

The magnetic flux (in weber) linked with a coil of resistance 10Omega is varying with respect to time t as phi=4t^(2)+2t+1 . Then the current in the coil at time t=1 second is

How will the magnetic field intensity at the contre of a circular coil carrying current change if the current through the coil is doubled and the radius of the coil is halved ?

What is the current passing through a coil of radius of 8 cm having 50 turns, when a magnetic field at the centre of the coil is 1.57xx10^(-6) T ?

The north pole of a magnet is brought down along the axis of a horizontal circular coil . As a result, the flux through the coil changes from 0.35 weber to 0.85 weber in an interval of half a second. Find the average emf induced during this period. Is the induced current clockwise or anticlockwise as you look into the coil from the side of the magnet?

Two concentric coils each of radius equal to 2pi cm are placed at right angles to each other. If 3A and 4A are the currents flowing through the two coils respectively. The magnetic induction (in Wb m^(-2) at the centre of the coils will be: