Question

If you connected 10 of these 12V (10 W) lamps in parallel, to the 12V source, how much current would the source have to supply

Answer 1

Answer:

$T=8.33A$

Explanation:

From the question we are told that:

Number of battery $n=10$

Voltage source$E=12V$

Lamp Power$P=10W$

Generally the equation for Resistance is mathematically given by

 $R=\frac{V^2}{P}$

 $R=\frac{12^2}{10}$

 $R=14.4ohms$

Therefore

 $R_{eq}=\frac{14.4}{10}$

 $R_{eq}=1.44$

Generally the equation for Current is mathematically given by

 $T=\ffrac{V}{Req}$

 $T=\frac{12}{1.44}$

 $T=8.33A$