(2)

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Step 1 :

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\"\"

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Current \"\" where  \"\".

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Power \"\".

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Substitute \"\" and \"\" in the above equation.

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\"\"

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\"\" where \"\".

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Step 2 :

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Current \"\" where  \"\".

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Substitute \"\" and \"\" in the above equation.

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\"\"

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\"\" where \"\".

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\"\"

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Solution :

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\"\"