Two coils having equal resistances but different inductances (say L1 and L2) having time constants τ1 and τ2 respectively, are connected in series. The time constant, ‘τ’ of the series combination is:

Question

TuteeHUB · Accepted Answer

$\tau = \frac{{{\tau _1}}}{{{\tau _2}}}$

TuteeHUB · Answer

τ = τ1 + τ2

TuteeHUB · Answer

$\tau = \frac{{{\tau _1} + {\tau _2}}}{2}$

TuteeHUB · Answer

τ = τ1 × τ2

1.	Two coils having equal resistances but different inductances (say L1 and L2) having time constants τ1 and τ2 respectively, are connected in series. The time constant, ‘τ’ of the series combination is:
A.	τ = τ1 + τ2
B.	\(\tau = \frac{{{\tau _1} + {\tau _2}}}{2}\)
C.	\(\tau = \frac{{{\tau _1}}}{{{\tau _2}}}\)
D.	τ = τ1 × τ2
Answer» C. \(\tau = \frac{{{\tau _1}}}{{{\tau _2}}}\)

Two coils having equal resistances but different inductances (say L1 and L2) having time constants τ1 and τ2 respectively, are connected in series. The time constant, ‘τ’ of the series combination is:

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