Question

An electric bulb connected to a $220V$ supply line draws a current of $0.05A$. Calculate the amount of coulombs per second flowing through the bulb.

Answer 1

Step 1:Given data

Current $\left(I\right)$ $=0.05A=\frac{5}{100}A$

Potential difference $\left(V\right)$ $=220V$

Time $\left(T\right)$ $=1s$

Step 2:Finding amount of coulombs per second

As we know, $Current=\frac{Charge}{Time}$

$I=\frac{Q}{T}$

$\Rightarrow Q=I\times T$

$$\begin{gathered} \Rightarrow Q=\frac{5}{100}\times 1 \\ \Rightarrow Q=0.05C \end{gathered}$$

Hence, the number of coulombs per second flowing through the bulb is $0.05C$.