Question

What is the capacitive reactance of a \[15.0\,\mu\mathrm{F}\] capacitor connected to a \[50\,\mathrm{Hz}\] source?

पर्याय

• \[1.47\,\mathrm{A}\]

• \[1.04\,\mathrm{A}\]

• \[220\,\Omega\]

• \[212\,\Omega\]

Answer 1

Use \[X_C=\frac{1}{2\pi\nu C}\]. Substituting \[\nu=50\,\mathrm{Hz}\] and \[C=15.0\times10^{-6}\,\mathrm{F}\] gives approximately \[212\,\Omega\].