Question

if a 12 volt battery is connected to the arrangements of resistances is given below calculate
1) the total effective resistance of the arrangement
2) Total current flow in the circuit
3) current through the 8ohm resistor ​

Answer 1

Answer:

Hey mate here's your answer.

Step-by-step explanation:

It can be seen that the 3ohm and 6ohm resistors are connected in series. So equivalent resistance through them,R=3+6

=9ohm.

It can be seen that 4ohm and 8ohm resistors are also connected in series,So equivalent resistance through them,R'=4+8

=12ohm.

Now, R and R' are connected in parallel, So equivalent resistance through them,1/R"=1/9+1/12

1/R"=7/36

R"=36/7

R"=5.14(approx)

Now, given that potential difference is 12 V.

Therefore current flowing through circuit,I=V/R

=12/5.14

=2.33A

Potential difference will be same in R and R" as they are in parallel.Also current through 4ohm and 8ohm resistors will be same as the are in series.

Therefore current through 8ohm resistor,I'=12/8

=1.5

Hope it helps you.

Please mark it as brainliest answer.