Question

Find the equivalent resistance between A & B.​

Answer 1

6 and 3 ohm resistors are in parallel so equivalent is 2ohm

2ohm is in series with 8ohm resistor then 8+2=10

10ohm resistor is in parallel with the 30ohm resistor the R, equivalent=30×10÷40=7.5ohm

Answer 2

Answer:

ans is 7.5 ohm

$\frac{1}{req} = \frac{1}{r1} + \frac{1}{r2}$

$req = r1 + r2$

use formula and try once later see the solution

Explanation:

3,6ohm are in parallel so Req is

$\frac{1}{req} = \frac{1}{6} + \frac{1}{3}$

$\frac{1}{req} = \frac{1 + 2}{6}$

$req = 2ohm$

2,8ohms are in series so Req is

$req = 2 + 8 = 10$

10,30 are in parallel so Req is

$\frac{1}{req} = \frac{1}{10} + \frac{1}{30}$

$\frac{1}{req} = \frac{1 + 3}{ 30 }$

$req = 7.5ohm$

Therefie equivlent current is 7.5 ohm's