- #1

- 31

- 1

## Homework Statement

One 18 watt lamp and two 60-watt light bulb are plugged into a 120V circuit. For either DC or AC, the two bulbs are connected each other in parallel and in series with the lamp in the same circuit. Calculate;

i. the current flow through each light

ii. the total resistance of the circuit,

The soultion provided is I1 = P /V = 18 /120 = 0.15A ,

I2 = P / V = 60/120 = 0.5A

## Homework Equations

## The Attempt at a Solution

I have tried to sketch the diagram as attached .

R1= 120/ 0.15 = 800 ohm , R2 = 120/0.5 = 240 ohm

I doubt the ans is correct . When i check thru the working again , i found that the V total = 0.15(800) + 0.5(240) = 240V ...

So , i think it's wrong ...

Correct me if i am wrong

Correct me if i am wrong

#### Attachments

Last edited by a moderator: