SHOLA ADERIBIGBE

What becomes V if we use 2 resistors of 4W in parallel?

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answers: 1

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Answer:

Nothing.

So let's make up some numbers. Suppose you have a 12V power supply and you connect it to a 4 ohm load. You will apply a full voltage of 12 V to the resistor, and 3 amps will pass through it. Now replace one resistor with a pair of 4-ohm resistors in parallel. The equivalent resistance is equal to the product of the sum (4*4)/(4 4) = 2 om. You will measure the same voltage (12V) over the mains, but now you will consume twice as much current (6 amps). Three amps go through one, and three amps go through the other.

Parallel resistors are current dividers (without voltage change). If you connect these resistors in series, you will have a voltage divider (without changing the current).

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VarInt

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