A uniform wire of resistance 5 ohm is cut into 5 equal parts. This parts are now connected in
parallel.The equivalent resistance of the combination is………….
Answers
Answered by
1
Answer:
We know that R∝l
On cutting the wire into five equal parts, length of each part becomes one-fifth and hence resistance of each part=R=
5
50
=10Ω
When all five wires of resistance R are connected in parallel, equivalent resistance becomes
5
R
=
5
10
=2Ω
Answer-(A)
Similar questions