Physics
Grade-9
Easy
Question
Three resistors each of 5 Ω are connected in the form of a triangle. What is the resistance between the vertices?
- 3/10 Ω
- 10/3 Ω
- 15/50 Ω
- 2/5 Ω
Hint:
The resistors connected in a triangular manner, the resistances of the vertices in a circuit can be said as resistors in parallel. Thus, 
The correct answer is: 10/3 Ω
If three resistors each of 5 Ω are connected in the form of a triangle, the resistance between the vertices is 10/3Ω.
- The resistances of the vertices in a circuit with the resistors connected in a triangular manner can be calculated as the parallel resistors considering any two corners.
- If the R1 and R2 are 5 Ω each, the total resistance is 1/5+ 1/10
- R= 1/5+1/10= 10/3 Ω
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