हिंदी

Predict the Directions of Induced Currents in Metal Rings 1 and 2 Lying in the Same Plane Where Current I in the Wire is Increasing Steadily.

Advertisements
Advertisements

प्रश्न

Predict the directions of induced currents in metal rings 1 and 2 lying in the same plane where current I in the wire is increasing steadily.

Advertisements

उत्तर

Using Lenz’s law we can predict the direction of induced current in both the rings. Induce current oppose the cause of increasing of magnetic flux. So,

It will be clockwise in ring 1 and anticlockwise in ring 2

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2011-2012 (March) Delhi Set 1

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

A short magnet is moved along the axis of a conducting loop. Show that the loop repels the magnet if the magnet is approaching the loop and attracts the magnet if it is going away from the loop.


A bar magnet is released from rest along the axis of a very long, vertical copper tube. After some time the magnet ____________ .


Two circular loops of equal radii are placed coaxially at some separation. The first is cut and a battery is inserted in between to drive a current in it. The current changes slightly because of the variation in resistance with temperature. During this period, the two loops _______________ .


A bar magnet is moved along the axis of a copper ring placed far away from the magnet. Looking from the side of the magnet, an anticlockwise current is found to be induced in the ring. Which of the following may be true?
(a) The south pole faces the ring and the magnet moves towards it.
(b) The north pole faces the ring and the magnet moves towards it.
(c) The south pole faces the ring and the magnet moves away from it.
(d) The north pole faces the ring and the magnet moves away from it.


Which of the following statements is not correct?


2 A 40 kg boy whose legs are 4 cm in area and 50 cm long falls through a height of 2 m without breaking his leg bones. If the bones can withstand stress of 0.9 x 108 N/m2. The Young's modulus for the material of the bone is ______.


For a coil having L = 2 mH, current flows at the rate of 10-3 AIS. The e.m.f induced is


Same as problem 4 except the coil A is made to rotate about a vertical axis (figure). No current flows in B if A is at rest. The current in coil A, when the current in B (at t = 0) is counterclockwise and the coil A is as shown at this instant, t = 0, is ______.


A metallic ring of mass m and radius `l` (ring being horizontal) is falling under gravity in a region having a magnetic field. If z is the vertical direction, the z-component of magnetic field is Bz = Bo (1 + λz). If R is the resistance of the ring and if the ring falls with a velocity v, find the energy lost in the resistance. If the ring has reached a constant velocity, use the conservation of energy to determine v in terms of m, B, λ and acceleration due to gravity g.


Predict the direction of induced current in the situation described by the following figure.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×