Eletricity formulas?

Question

please give a list of eletricity formulas! grade 9 level please

Answer 1

E (voltage) = I (current) X(times) R(resistance)

E=IR

P(power) = I (current) X (times) E (voltage)

P=IE

Answer 2

In d.c circuits power is Vx I where V is voltage I is Current

Also I=E/r where E is voltage  and R is the resistance

In Ac Power is Vx IxcosTheta where cos theta is power factor.