Question

The chapter is Electricity and pls help me with this​

Answer 1

Answer:

1)1/R=1/5+1/10+1/30= 6+3+1/30=10/30=1/3=0.33ohms

I=V/R= 6/0.3= 20amp

2)R¹+R²=4+4=8ohms

R³+R⁴=4+4=8ohms

total resistance= 1/8+1/8=2/8=1/4=0.25ohms

I=V/R=12/0.25amp

3)R1=6+4=10

R2=12

total resistance= 1/10+1/12=6+4/60= 1/6=0.16ohms

I=V/R= 1.5/0.16amp