Question

find the value of current as given below.

please give proper explanation.

Answer 1

Equivalent resistance

ED and AC are in parallel .

1/R = 1/30 + 1/30

= > 1/R = 2 × 1/30

= > 1/R = 2/30

= > 1/R = 1/15

= > R = 15

Now this 15 is series with BC

R = 15 + 15

  = 30

This 30 is again parallel with AB

1/R = 1/30 + 1/15

= > 1/R = ( 1 + 2 ) / 30

= > 1/R = 3 / 30

= > R = 30/3

= > R = 10

Equivalent resistance = 10

Ohm's law :

V = I R

= > I = V/R

Given :

V = 3 v

I = 3 v / 10 ohm

 = 0.3 A

ANSWER :

0.3 A is the current flowing !