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How many 176 ohm resistors (in …

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How many 176 ohm resistors (in parallel) are required to carry 5 A on a 220 V line?

Posted by Aswany Suresh 7 years ago

CBSE > Class 10 > Science

1 answers

Amira Roy❤❤ 7 years ago

For x number of resistors of resistance 176 Ω, Here Supply voltage, V = 220 V Current, I = 5 A Equivalent resistance of the combination = R, given as 1÷R=x × [1÷176] R=176÷x from Ohm's law V÷I = 176÷x x={176×I} ÷ V x={176×5} ÷ 220 x=4 ∴four resistors of 176 Ω are required to draw the given amount of current.

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