Region $(I)$ - Cutoff region
Region $(II)$ - Active region
Region $(III)$ -Saturation region
Using transistor as a switch it is used in cutoff region or saturation region.
Using transistor as a amplifier it is used in active region.
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Reason $(R):$ Opposite currents carrying wires repel each other.
$I = 10\,\sin \,\omega t$ ; $V = 10\,\sin \,\left( {\omega t + \pi /4} \right)$
then which of the following element may be present in the circuit
$(a)$ Only $C$ $(b)$ All $L, C$ and $R$ $(c)$ Both $C$ and $R$ $(d)$ Both $L$ and $R$
