Magnetic flux φ (in weber) linked with a closed circuit of resistance 10 Ω varies

Magnetic flux φ (in weber) linked with a closed circuit of resistance 10 Ω varies with time t (in sec) as φ=5t²-4t+1. The induced e.m.f. in the circuit at 0.2 sec is

Options

(a) 0.4 volt
(b) 2.0 volt
(c) (-0.4 volt)
(d) (-2.0 volt)

Correct Answer:

2.0 volt

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. A conducting square frame of side ‘a’ and a long straight wire carrying current I
  2. The S.I. unit of electric flux is
  3. At place on earth, the vertical component of earth’s magnetic field is √3 times
  4. The displacement of particle is given by x=aₒ+(a₁t/2)-(a₂t²/3) what is acceleration?
  5. The force F acting on a particle of mass m is indicated by the force-time graph