Doubt from current electricity

Example 1 :

Example 2 :

#2
wheat stone bridge

How? plz do explain..

Use star delta conversion

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How to use star delta conversion ?

@Vandana_2020_2

  • star delta
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Thnks for ur efforts

Unbalanced one

nope it's balanced ans b

@Sneha_2021 this will be 4 , and you have written it as 2

ohh i see after that also we can find using unbalanced wheat stone bridge concept
taking x and y variable
i=\dfrac{v}{r_{eq}}

It should be

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got my mistake thanks for pointing error

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Thnks a lot..what abt eg. 1 ?? I m not able to understand .