Question

Please answer ASAP. And, answer only if you know it pleeeeeese. I'm in a hurry!!!!

Answer 1

It is explained in the image clearly

Answer 2

Explanation:

(a) first we add parallel combination

1/ R2 + 1/ R3

= 1/ 40 + 1/ 120

= 3+1 /120 = 4/120 = 1/ 30

then we add series combination

R1 + R + R4

= 10 + 1/ 30 + 20

we gives

30 ohm

( b) first we add R1 and R2

= 5+2 = 7

then , we add

parallel combination

1/ 7 +1/ 3 = 10 / 21

then we add

R + R4

10/ 21 + 3.9

= 4.38 ohm

(c). first we add

= 17 + 7= 24

then parallel combination

= 1/ 8+1/6+1/24 = 1/ 3

then we add all resistance

5+1/3 +11+1 = 17.33

Hey ! is your answer is here