Manipal MET2018PhysicsCurrent Electricity
A uniform wire of resistance 9 is cut into 3 equal parts. They are connected in the form of equilateral triangle A B C . A cell of emf 2 V and negligible inernal resistance is connected across B and C. Potential difference across A B is
Options
- A1 V
- B2 V
- C3 V
- D0.5 V
Correct answer
C. 3 V
Step-by-step solution
array r R^ = 9 3 =3 R_ net =2 array PD across AB V^ =i R^ = V R_ net R= 2 2 3=3 ~V