Question

9. Carefully study the circuit diagram shown in Fig. 3.23 and calculate the value of x.
[Ans. 11.3 ohm]​

Answer 1

Explanation:

x=11.1538462

total resistance=6/0.4=15

x=11.15

Answer 2

Answer:

11.3 ohm

Explanation:

V=iR

⇒V/i=R

⇒6/0.4=R=15--------------------------------------------------------------------------i

again,R=2+x+1/(1/12 + 1/6 + 1/3)=2+x+12/7=26/7 +x------------------------ii

comparing i and ii,

26/7+x=15

⇒ x=15-26/7=11.3 ohm