Question

The dimensions of resistance × capacitance are same as that of

• A. current
• B. energy
• C. frequency
• D. time-period.

Answer 1

Answer: (D)

Resistance $=\frac{voltage}{current}$ and
Capacitance $=\frac{charge}{voltage}$
$\therefore$ Resistance × capacitance
$=\frac{voltage}{current}\times \frac{charge}{voltage}=\frac{charge}{current}$
$=\frac{current\times timeperiod}{current}$ $=$ time period