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 long straight wire is carrying a current of 12 A. The magnetic field at a distance
  2. The de-Broglie wavelength of an electron in the first Bohr orbit is
  3. In Moseley’s law √ν=a(z-b), the values of the screening constant for K-series
  4. An electric dipole placed in a non-uniform electric field experiences
  5. Consider a two particle system with particle having masses m₁ and m₂. If the first