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Choose the right answer:

a)A** capacitor can **conduct a** dc circuit** ,but **not an inductor**.

b)In a **dc circuit** ,the **inductor can conduct but not a capacitor**.

c)In a **dc circuit,** both the **capacitor and inductor cannot conduct**.

d)The** inductor **has a **infinite resistance **in a **dc circuit**.

A capacitor can conduct only while charging and discharging and hence will not conduct in dc current. An inductor can act as a short circuit in dc and hence will conduct in dc.

Reactance of an inductor is

${X}_{L}=\omega L=2\pi fL\phantom{\rule{0ex}{0ex}}where,\phantom{\rule{0ex}{0ex}}\omega =2\pi f,fisthefrequencyofthesignal\phantom{\rule{0ex}{0ex}}iff=0\phantom{\rule{0ex}{0ex}}{X}_{L}=0$

Ans (b)

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