Question
Rc circuit

first we will find equivalent resistance

Req=(R1+R2) parllel to(R3+R4)

=(4+2) parllel to(9+3)

=6 parllrl to 12

1/Req=1/6+1/12

Req=4ohm

Total Current in circuit: Itotal = Vtotal/Rtotal (using Ohms law)

Itotal=8/4

=2amps

Vn=vtotal*Rn/Rtotal

so Vn=8*4/(4+2)

Vn=5.33 V

P=v^2/R

=5.33^2/4

=7.10watt

2)Vn=vtotal*Rn/Rtotal

=8*3/12

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