A pulse *e*(*t*) shown in Fig. 4.26(a) is given by *e*(*t*) = *u* (*t*) – *u*(*t* – *T*). This pulse is applied to a series RL circuit shown in Fig. 4.26(b) by closing a switch K. Applying KVL in the loop of Fig. 4.26(b), it can be written as that,

**Fig. 4.26** (a) Series R–L circuit with pulse input, (b) series R–L circuit

Taking Laplace transform of Eq. (4.99), it can be written as follows,

Using Eq. (10.37) and putting *i*(0−) i.e., the circuit is initially ...

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