Question

If the total resistance of the given circuit is 20ohms then calculate the resistance of resistor X and current flowing through the circuit

Answer 1

Answer:

Here is the diagram

Explanation:

Answer 2

Answer:X=15

Explanation:

1/Rp=1/R1+R2 +1/R3+R4

1/20=1/10+x+1/25+75

1/20-1/100=1/10+x

5-1/100=1/10+x

4/100=1/10+x

1/25=1/10+x

0=1/25-1/10+x

25=10+x

X=25-10

X=15

Therefore the resistance of resistor X is 15ohm

The current flowing through it =

V=IR

I=V/R

I=6/20

I=0.3