Home
Class 12
PHYSICS
Shows a coil placed in a magnetic field ...

Shows a coil placed in a magnetic field decreasing at a rate of `10 T s^(-1)`. There is also a source of emf `30V` in the coil. Find the manitude and direction of the current in the coil.

Text Solution

Verified by Experts

Induced emf `= 20V`
The equivalent circuit can be drawn as current `I = (30 - 20)/(5) = 2 A clockwise`.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Exercise 3.2|27 Videos

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Exercises Subjective|13 Videos

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Solved Example|5 Videos

  • ELECTRICAL MEASURING INSTRUMENTS

    CENGAGE PHYSICS ENGLISH|Exercise M.C.Q|2 Videos

  • ELECTRON,PHONTS,PHOTOELECTRIC EFFECT & X-RAYS

    CENGAGE PHYSICS ENGLISH|Exercise dpp 3.3|15 Videos

Similar Questions

Explore conceptually related problems

Shows a coil placed in a decreasing magnetic field applied perpendicular to the plane of the coil. The magnetic field is decreasing at a rate of 10 T s^(-1) . Find out current in magnitude and direction of current.

Shows a coil placed in a decreasing magnetic field applied perpendicular to the plane of the coil. The magnetic field is decreasing at a rate of 10 T s^(-1) . Find out current in magnitude and direction of current.

The magnetic field at the centre of the current carrying coil is

A coil of area 10cm^2 and 10 turns is in magnetic field directed perpendicular to the plane and changing at a rate of 10^8 gauss//s . The resistance of coil is 20Omega . The current in the coil will be

A coil of area 10cm^2 and 10 turns is in magnetic field directed perpendicular to the plane and changing at a rate of 10^8 gauss//s . The resistance of coil is 20Omega . The current in the coil will be

Two coils are at fixed location: When coil 1 has no corrent and the current in coil 2 increase at the rate of 15.0 A s^(-1) , the emf in coil 1 is 25 mV , when coil 2 has no current and coil 1 has a current of 3.6 A , the flux linkange in coil 2 is

A coil of self-inductance L is placed in an external magnetic field (no current flows in the coil). The total magnetic flux linked with the coil is phi . The magnetic field energy stored in the coil is

A circular coil of 20turns and radius 10cm carries a current of 5A . It is placed in a uniform magnetic field of 0*10T . Find the torque acting on the coil when the magnetic field is applied (a) normal to the plane of the coil (b) in the plane of coil. Also find out the total force acting on the coil.

A flat circular coil of 10 cm radius has 200 turns of wire. The coil is connected to a capacitor of 20 muF and placed in a uniform magnetic field whose induction decreases at a constant rate of 10^(-2)T//s. Find the capacitor's charge. The plane of the coil is perpendicular to the lines of induction of the field.

A coil of 100 turns and area 5 square centimetre is placed in a magnetic field B = 0.2 T . The normal to the plane of the coil makes an angle of 60^(@) with the direction of the magnetic field. The magnetic flux linked with the coil is