Advertisements
Advertisements
प्रश्न
What is the direction of induced currents in metal rings 1 and 2 when 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. Induced current opposes the cause of increasing of magnetic flux.

So, induced current will be clockwise in ring 1 and anticlockwise in ring 2.
APPEARS IN
संबंधित प्रश्न
A bar magnet is moved in the direction indicated by the arrow between two coils PQ and CD. Predict the directions of induced current in each coil.

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 _______________ .
Lenz’s law is a consequence of the law of conservation of ______.
Which of the following statements is not correct?
A wire in the form of a tightly wound solenoid is connected to a DC source, and carries a current. If the coil is stretched so that there are gaps between successive elements of the spiral coil, will the current increase or decrease? Explain.
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.

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

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

Use Lenz’s law to determine the direction of induced current in the situation described by the figure.
A circular loop being deformed into a narrow straight wire.

