Fundamentals of Electrical Circuit Analysis by Md. Abdus Salam & Quazi Mehbubar Rahman

Author:Md. Abdus Salam & Quazi Mehbubar Rahman
Language: eng
Format: epub
Publisher: Springer Singapore, Singapore

(5.274)

At initial current in the inductor is,

(5.275)

At Eq. (5.274) becomes,

(5.276)

Substituting Eq. (5.276) into Eq. (5.274) yields,

(5.277)

The rising and falling of the current are shown in Fig. 5.45. The ratio of inductance to resistance is defined as time constant and it can be derived as follows:

Fig. 5.45Rising and decay of current

(5.278)

(5.279)

(5.280)

The unit of the resistance is,

(5.281)

From Eqs. (5.280) and (5.281), it can be written as,

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