Question

A lamp resistant 80 ohum draws current of 0.25 a find voltage

Answer 1

v=ir. ( by ohms law)
now v=80×.25
=200 volts

hope that helps ...

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Answer 2

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

$\sf{resistnance = 80ohm}$

$\sf{current = 0.25ampere}$

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

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

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

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

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

$\sf{Placing \: Values}$

$\longrightarrow\sf{v = 80 \times 0.25}$

$\longrightarrow\sf{v = 20v}$

⛬ $\sf{The \: Voltage \: is \: 20Volt}$