See Figure 11.2. The current through a 10 mH coil is changing as shown in the di

Question

See Figure 11.2. The current through a 10 mH coil is changing as shown in the diagram. What is the voltage across the coil at t = 6 ms?

A toroidal inductor can be described as

Select one:

A. any inductor that contains a ferromagnetic core.

B. a permeability-tuned inductor, in which the core is adjustable within the coil to vary the inductance.

C. any inductor that contains core material exhibiting a linear BH characteristic curve.

D. an inductor that contains a doughnut-shaped core.

Explanation / Answer

Voltage across inductor at time t=6ms

voltage across indutor =inductance * rtae of cgnage of current through inductor (L*di/dt)

at time=6ms, the current through inductor is constant so rate of change of current through inductor is zero,

then volage acroos indutor is also zero.

A toroidal inductor can be discribed as an inductor that contains a doughnut (ring)-shaped core.

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