Definitions, laws etc.

Question 1

What is Ohm’s law?

Answer 1

The current flowing through a conductor is directly proportional to the voltage across that conductor: I = V/R

but this law is not always obeyed, as the assumption is that the conductor has a constant resistance, so it’s an Ohmic conductor

Question 2

What are cells in electricity?

Answer 2

cells make up batteries

Question 3

What are primary cells and what are secondary cells?

Answer 3

Primary: non-rechargeable
Secondary: rechargeable