Question

how will you connect three resistors of 2 ohm ,3 ohm , 5 ohm respectively so as to obtain a resultant resistance of 2.5 ohm . draw the diagram to show the arrangement

Answer 1

Here is your answer,

Connect the 2 ohms + 3 ohms resistance in series.,
So, the total series resultant = 5 ohms

Now, Connect the these 5 ohms resistance to other 5 ohms resistance in parallel,
So, 1 / R = 1 / R1 + 1 / R2
1 / R = 1 / 5 + 1 / 5
1 / R = 2 / 5
R = 5 / 2
R = 2.5 ohms

Hope it helps you

Answer 2

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