Question

If a 60–watt bulb is used to light a room, how much current is flowing through the bulb given that the voltage is 120 volts?

Answer 1

Answer:

Power (p) = 60 Watts

Voltage (v)= 120 volts

To find:-

We have to find the current (I)

Formula used!

\underline{\boxed{\sf{\dag\ Power(p) =Voltage(v) \times Current (I)}}}

† Power(p)=Voltage(v)×Current(I)

Now put the values in the formula

\begin{gathered}\longrightarrow\sf P= VI\\ \\ \longrightarrow\sf 60= 120\times Current \\ \\ \longrightarrow\sf \cancel{\dfrac{60}{120}}=Current \\ \\ \longrightarrow\sf \dfrac{1}{2}= Current \\ \\ \longrightarrow\sf Current = 0.5 \ Ampere \end{gathered}

⟶P=VI

⟶60=120×Current

⟶

120

60

=Current

⟶

2

1

=Current

⟶Current=0.5 Ampere

So the answer of your question is option D

\bigstar{\boxed{\sf{\dag\ \ Current (I) = 0.5 \ A }}}★

† Current(I)=0.5 A

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