Question

If
you are provided three resistances 2 ohms, 3 ohms and 6 ohms. How will you
connect them so as to obtain the equivalent resistance of 4 ohms?
302
R.
60
A)
B)
The rifin
D) None of these​

Answer 1

Answer:

Here, 6 Ω and 3 Ω resistors are connected in parallel.

Therefore, their equivalent resistance will be given by

1/R1 + 1/R2= 1/6 +1/3

lcm=6

1/6+2/6=3/6=1/2

⇒R=2 Ω

This equivalent resistor of resistance 2Ω is connected to a 2Ω resistor in series.

Therefore, equivalent resistance of the circuit = 2Ω + 2Ω =4Ω

Hence, the total resistance of the circuit is 4Ω.