Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
JEE Main & Advanced
Physics
Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
Question Bank
Grouping of Resistances
question_answer
A wire has a resistance of 12 ohm. It is bent in the form of equilateral triangle. The effective resistance between any two corners of the triangle is
A) 9 ohms
B) 12 ohms
C) 6 ohms
D) 8/3 ohms
Correct Answer:
D
Solution :
As resistance µ Length \ Resistance of each arm \[=\frac{12}{3}=4\,\Omega \] \ \[{{R}_{effective}}=\frac{4\times 8}{4+8}=\frac{8}{3}\Omega \]