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shannydouglas
21.02.2020 •
Physics
A metal wire of resistance 48 is cut into four equal pieces that are then connected side by side to make a new wire that is one-quarter of the original length. What is the resistance of this new wire?
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Ответ:
Explanation:
Resistance of wire, R = 48 ohm
It is cut into four pieces.
As we know that the resistance is directly proportional to the length of the wire.
So, the resistance of each piece of wire, R' = 48 / 4 = 12 ohm
Now the four pieces are connected in parallel. So the equivalent resistance is given by
Req = 3 ohm
Ответ:
oh remember me lol ?
Explanation: