Question

An electric bulb of resistance 80 ohm draws a current of 0.7



a. Find the line voltage

Answer 1

my friend ans is 56 v. because v=IR hence v=.7x80=56 .

hope it help.

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Answer 2

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

$\sf{resistnance = 80ohm}$

$\sf{current = 0.7ampere}$

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

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

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

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

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

$\sf{Placing \: Values}$

$\longrightarrow\sf{v = 80 \times 0.7}$

$\longrightarrow\sf{v = 56v}$

⛬ $\sf{The \: Voltage \: is \: 56Volt}$