EST Test on Electricity
What is a pole?
The number of separate circuits a switch can control
What is a unipolar switch?
The switch controls a single circuit
What is a bipolar switch?
The switch controls two circuits
What is a direction?
The number of circuits that can be closed by the switch
What is a unidirectional switch?
Each switch closes one circuit
What is a bidirectional switch?
Each switch can close 2 circuits
What are Kirchoff's laws in a series circuit?
It=I1=I2=I3
Vt=V1+V2+V3
Req=R1+R2+R3
What are Kirchoff's laws in a parallel circuit?
It=I1+I2+I3
Vt=V1=V2=V3
1/Req=1/R1+1/R2+1/R3
What is Coulomb's law to find Fe?
Fe= kq1q2/r^2
What is Coulomb's law to find r?
sqrt(kq1q2/Fe)
What is Coulomb's law to find q2?
q2= r^2Fe/kq1