Question

How can three resistors of resistance 2 ohm 3 ohm and 6 ohm be connected to give a total resistance of 1 Ohm

Answer 1

They should be connected in parallel.

Rp=(1/2 + 1/3 + 1/6)⁻¹

taking lcm,

=(3/6 + 2/6 +1/6)⁻¹

=6/6

=1 ohm.

Answer 2

Referred to the attachments.....