Current Electricity Charging Discharging Of Capacitors Question 337
Question: A piece of wire of resistance 4 ohms is bent through $ 180{}^\circ $ at its mid-point and the two halves are twisted together, then the resistance is
[CPMT 1971]
Options:
A) 8 ohms
B) 1 ohm
C) 2 ohms
D) 5 ohms
Show Answer
Answer:
Correct Answer: B
Solution:
In twisted wire, two halves each of resistance $ 2\Omega $ are in parallel, so equivalent resistance will be $ \frac{2}{2}=1\Omega $ .
BETA
