Home
Class 12
PHYSICS
If magnetic flux phi = (3t^2 - 2t + 5) W...

If magnetic flux `phi = (3t^2 - 2t + 5)` Wb, then what is induced emf at t = 2 s.

Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    KUMAR PRAKASHAN|Exercise Section A HOTS|2 Videos

  • ELECTROMAGNETIC INDUCTION

    KUMAR PRAKASHAN|Exercise Section B (Numerical) Textual Illustrations|26 Videos

  • ELECTROMAGNETIC INDUCTION

    KUMAR PRAKASHAN|Exercise Section D MCQs (MCQs asked in Competitive Exams )|38 Videos

  • ELECTRIC CHARGES AND FIELDS

    KUMAR PRAKASHAN|Exercise SECTION D MCQS ASKED IN COMPETITIVE EXAMES (MCQS AKSED IN BOARD EXAM AND GUJCET)|14 Videos

  • ELECTROMAGNETIC WAVES

    KUMAR PRAKASHAN|Exercise BOARD.S QUESTION PAPER MARCH - 2020 (PART - B) SECTION - C|5 Videos

Similar Questions

Explore conceptually related problems

Magnetic Flux linked with a coil is phi = 5 t^2 + 2 t + 3 where t is in second and phi is in weber. At time t =1 sec., the value of induced emf is ........... volt.

In AC generator, induced emf is zero at time t = 0. The induced emf at time pi/(2omega) is ____

The flux linked with a coil at any instant 't' is given by phi=10t^2-50t+250 . The induced emf at t=3s is ____

A rod of 10 cm length is moving perpendicular to uniform magnetic field of intensity 5 xx 10^(-4) "Wb/m"^2 . If the acceleration of the rod is 5 "m/s"^2 , then the rate of increase of induced emf is ….

Equation of the motion of the particle is S = t^(3)-6t^(2)+9t , where S is in mets and t is in seconds. (i) Find the instantaneous velocity when t = 2. (ii) When particle is at rest ? (iii) Find distance travelled by particle in first 5 second.

A coil having N turns and area A is rotating in uniform magnetic field then at time t, the magnetic flux associated with the coil is given by phi=NAB cos omegat . In the first rotation at time t = . . s, the induced emf is obtained maximum.

A coil having 200 turns has a surface of 0.15 m^2 . A magnetic field of strength 0.2 T applied perpendicular to this changes to 0.6 T in 0.4 s. then the induced emf in the coil is …. V.

A rod of 5m length is moving perpendicular to uniform magnetic field of intensity 2 xx 10^(-4) "Wb/m"^2 . If the acceleration of rod is 2ms^(-2) , th rate of increase of the induced emf is____

A 1m long metal wire moving perpendicular with speed 5m//s is a magnetic field of 0.1T. Then the induced emf between two ends of wire is……V