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Question: Three resistors \(2 \Omega , 4 \Omega\)and \(5 \Omega\) are combined in parallel. This combination i...

Three resistors 2Ω,4Ω2 \Omega , 4 \Omegaand 5Ω5 \Omega are combined in parallel. This combination is connected to battery of emf 20 V and negligible internal resistance. The total current drawn from the battery is

A

10 A

B

15 A

C

19 A

D

23 A

Answer

19 A

Explanation

Solution

: Potential of 20 V will be same across each resistance current.

∴\thereforeTotal current drawn circuit,

I=I1+I2+I3=10+5+4=19 A\mathrm { I } = \mathrm { I } _ { 1 } + \mathrm { I } _ { 2 } + \mathrm { I } _ { 3 } = 10 + 5 + 4 = 19 \mathrm {~A}