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Determine the current drawn from a 12V s...


Determine the current drawn from a `12V` supply with internal resistance `0.5Omega`. By the infinite network shown in fig. Each resistor has `1Omega` resistance.

Text Solution

Verified by Experts

The correct Answer is:
3.73

First calcualte net resistance of `infty` network
`x=2+(x)/(x+1),x^(2)-2x-2=0`,
on solving `x=1+sqrt(3)=2.73Omega`
Total resistance `=2.73+0.5=3.23Omega`
`1=(12)/(3.23)=3.73A`
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Knowledge Check

  • A 5V battery with internal resistance 2Omega and a 2V battery with internal resistance 1Omega are connected to a 10Omega resistor as shown in the figure. The current in the 10Omega resistor is

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