Question

A bullo rated 160 watt and
220 volt. Find
a) What is the current and resistance
​

Answer 1

Explanation:

$\displaystyle\textbf{Given:}\\ \\power,p=160 watt\\voltage,v=220 volt\\ \\ \textbf{To Find:}</p><p>\\ \\current,I\\resistance,R\\ \\ \textbf{Formulae To Be Used:}\\\\ \boxed{V=IR}\\\\\boxed{P=VI}\\ \\ \mathbb{SOLUTION:}\\ \\ \textbf{Step 1: To Find Current }\\\boxed{P=VI}\\ \\ I=\frac{P}{V}\\ \\=\frac{160}{220}\\ \\=\frac{8}{4}I=0.727 A\\ \\ \boxed{current,I=0.727\: A}\\ \\ \textbf{Step 2: To Find Resistance Using Ohm's Law}\\ \\ \boxed{V=IR}\\ \\R=\frac{V}{I}\\ \\=\frac{220}{0.727}R=302.5 ohm\\ \\ \boxed{resistance,R=302.5\: ohm}\\\\\textbf{Other Formulae:}\\\\P=\frac{V^2}{R}\\\\P=I^2R\\\\\textbf{Units Of the Terms:}\\\\ \textrm{SI unit of power is \underline{watt}}\\\\\textrm{SI unit of voltage is \underline{volt}}\\\\\textrm{SI unit of current is \underline{ampere}} \\\\\textrm{SI unit of resistance is \underline{ohm}}</p><p>$