Question

4. What current is drawn by a 90 W light bulb on a 110 V household circuit?

Using GRASS method
answer for 100 points

Answer 1

Formula is

`\boxed{\sf I=(P)/(V)}`

• I denotes to current
• P denotes to power
• V denotes to Voltage

So

`\\ \tt{:}\longrightarrow I=(90)/(110)`

`\\ \tt{:}\longrightarrow I=0.82A`

Answer 2

• V=110V
• P=90W

We know

• P=VI

current is I

• 90=110I
• 9=11I
• I=9/11
• I=0.82A