Question

A current flows through an electrical device of resistance 120 ohm. calculate power of the device?
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Answer 1

Answer:

in this question the current should also be given to find the answer of this question...

it's and incomplete question.. .

Answer 2

${\huge{\boxed{\sf{\green{❥✰Given :-✰}}}}}$

A current flows through an electrical device of resistance 120 ohm. calculate power of the device?

​To Find :-

What is the current flowing through the device.

Formula Used :-

$\clubsuit♣$ Current Formula :

$\longmapsto \sf\boxed{\bold{\pink{I =\: \dfrac{V}{R}}}}⟼$

Where,

I = Current

V = Voltage

R = Resistance

Solution :-

Voltage = 22V

Resistance = 220 Ω

According to the question by using the formula we get,

$\longrightarrow \sf I =\: \dfrac{22}{220}⟶I=$

$\longrightarrow \sf I =\: \dfrac{\cancel{22}}{\cancel{22}0}⟶I=$

$\longrightarrow \sf I =\: \dfrac{1}{10}⟶I=$

$\longrightarrow \sf\bold{\red{I =\: 0.1\: Ampere}}⟶I=0.1Ampere$

$\therefore∴$The current flowing through the device is 0.1 Ampere.

$\rule{150}{2}$$\rule{150}{2}$

EXTRA FORMULA :

$\clubsuit♣$ Voltage Formula :

$\longmapsto \sf\boxed{\bold{\pink{V =\: IR}}}⟼$

$\clubsuit♣$ Resistance Formula :

$\longmapsto \sf\boxed{\bold{\pink{R =\: \dfrac{V}{I}}}}⟼$

where,

V = Voltage

I = Current

R = Resistance

Hope it helps!