1.

Determine the voltage induced in a 250 mH inductor when the current changes at the rate of 50A/s.

2.

Two inductors of 300 mH and 600 mH are connected in parallel. Determine the equivalent inductance.

3.

If the current through an 80 mH inductor is

determine the power drawn by the inductor.

4.

The current through a 400 mH inductor is given by

Determine

1. the energy stored in the inductor at t = 0 s,

2. the energy stored in the inductor between t = 0s and t = 0.5s,

3. the voltage at t = 0.5s and

4. the instantaneous power at t = 0.5s

5.

A parallel combination of two inductors ( L ₁ = 1.2 H and L ₂ = 0.60 H) is placed in series with two more inductors ( L ₃ = 1.0 H and L ₂ = 0.80 H). Determine the equivalent inductance.

6.

The simple network shown in Fig 7.1 is connected to a current source at t = 0. The current provided by the source is i = 4 t A.

At t = 5 s, find

Figure 7.1

1. the instantaneous power drawn by the resistor,

2. the instantaneous power drawn by the inductor,

3. the instantaneous power delivered by the source,

   and between 0 ? t ? 4 s,

4. the energy dissipated by the resistor

5. the energy stored by the inductor

6. the energy delivered by the current source.

7.

The...