Question

$\huge\fcolorbox{red}{aqua}{Question}$
what current flows through a hair dryer plugged into a 110 volt circuiit if it has a resistance of 25 ohms?​

Answer 1

Answer :

• Current (I) = 4.4 Ampere.

Given :

• Voltage, V = 110 volt.

• Resistance, I = 25 ohms.

To find :

• The current flows through a hair dryer plugged into a 110 volt circuit if it has a resistance of 25 ohms.

Formulas to be used :

• Ohm's law. V = I × R.

Where,

V = Voltage.

I = Current.

R = Resistance.

Solution :

To find the current = ?

According to the ohm's law,

$\qquad \red {\underline {\boxed {\tt Ohm's \ law, V \ = \ I \times R}}}$

So,

$\implies \large \tt V \ = \ I \times R$

We know that,

$\implies \large \tt I \ = \ \dfrac {V}{R}$

Put the given values in the formula,

We get,

$\implies \large \tt V \ = \ \dfrac {110 \ V}{25 \ \Omega}$

$\implies \large \tt 4.4 \ \dfrac {V}{\Omega}$

$\qquad \large \blue {\underline {\boxed {\tt Current, I \ = \ 4.4 \ A}}}$

$\therefore$ The current flows through a hair dryer is 4.4 Ampere.

Answer 2

$\huge\mathcal{\fbox{\fbox{\pink{Hello}}}}$

Ohm's Law says

V

=

I

⋅

R

.

A bit of algebra says

I

=

V

R

So

V

=

110

V

25

Ω

=

4.4

V

Ω

=

4.4

A

I hope this helps,

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