Current Electricity Question 8
Question 8 - 2024 (27 Jan Shift 1)
A wire of resistance $R$ and length $L$ is cut into 5 equal parts. If these parts are joined parallely, then resultant resistance will be :
(1) $\frac{1}{25} \mathrm{R}$
(2) $\frac{1}{5} \mathrm{R}$
(3) $25 \mathrm{R}$
(4) $5 \mathrm{R}$
Show Answer
Answer: (1)
Solution:
Resistance of each part $=\frac{R}{5}$
Total resistance $=\frac{1}{5} \times \frac{R}{5}=\frac{R}{25}$
