A torch bulb rated as 4.5 W, 1.5 V is co...

A torch bulb rated as 4.5 W, 1.5 V is connected as shown in figure given below.

What is the current passing through `1Omega` resistor?

A

4.5 A

B

1.5 A

C

2.67 A

D

13.5 A

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The correct Answer is:

B

Voltage across `1Omega` resister `V_(1Omega) =1.5V`
`i = (V )/(R.) =(1.5)/(1)=1.5A`

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