Consider the circuit shown in figure.Fin...

Consider the circuit shown in figure.Find the current through the`10(Omega)`resistor when the switch S is (a)open (b)closed .

A

0.1 A

B

0.15 A

C

0.45 A

D

0.3 A

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The correct Answer is:

D

After closing the switch, `20Omega` becomes ineffective
`:.I=(V)/(R)=(3)/(10)=0.3A`

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