Answer:
Total resistance=33.3 ohms
Current=0.36 amperes
Step-by-step explanation:
Voltage=12v
R1=50 ohms
R2=50 ohms
R3=50 ohms
Two connected in series:
R1+R2=50+50=100 ohms
In parallel
1/R=1/50 + 1/100
1/R=(2+1)/100
1/R=3/100
Cross multiplying we get
100=3R
Divide both sides by3
100/3=3R/3
33.3=R
Total resistance=33.3 ohms
Current=voltage ➗ resistance
Current=12 ➗ 33.3
Current=0.36 amperes