Question

(d) Calculate the equivalent resistance of three resistors each of 1202 when (i) connected in series (ii)when connected in parallel.​

Answer 1

Answer:

See below

Explanation:

I will assume each resistor is 120 ohms

  in series , the resistance just sums.... to 120 + 120 + 120 = 360 ohms

  in parallel they are   1 / (1/120 + 1/120 + 1/120) = 1/ (3/120) = 40 ohms