Question

An Incandescent lamp of resistance 40 ohm draws a current of 5.A.find the line voltage

Answer 1

Resistance = 40 ohm

current = 5 A

voltage= ?

$v \: = \: i \times r$

v = 5 × 40

= 200 volt

Voltage is 200 v

Answer 2

$\huge{\underline{\underline{\sf{Given-}}}}$

$\sf{resistnance = 40ohm}$

$\sf{current = 5ampere}$

$\huge{\underline{\underline{\sf{To \: Find-}}}}$

$\sf{voltage \: (v) = }$

$\huge{\underline{\underline{\sf{Solution-}}}}$

$\sf{we \: know \: ohm \: formula}$

$\large{\boxed{\sf \: {V=IR}}}$

$\sf{Placing \: Values}$

$\longrightarrow\sf{v = 40 \times 5}$

$\longrightarrow\sf{v = 200v}$

⛬ $\sf{The \: Voltage \: is \: 200Volt}$