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

`T=8.33A`

Step-by-step 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=(V^2)/(P)`

`R=(12^2)/(10)`

`R=14.4ohms`

Therefore

`R_(eq)=(14.4)/(10)`

`R_(eq)=1.44`

Generally the equation for Current is mathematically given by

`T=\ffrac{V}{Req}`

`T=(12)/(1.44)`

`T=8.33A`