Physics: current electricity

Question 1

define current electricity

Answer 1

Current electricity is the flow of electric charge through a wire or circuit when we use electricity to power devices and transmit energy.

Question 2

what is electric current and what unit is it measured in?

Answer 2

electric current is the movement of electricity through a wire or circuit.

it is measured in amperes (A)

Question 3

what is voltage and what is its unit of measure?

Answer 3

Voltage also known as potential difference is the force that pushes electricity through a circuit. It is measured in volts (V).

Question 4

what is resistance and what unit is it measured in?

Answer 4

Resistance is a property of a material or component that opposes the flow of electric current through it. It is measured in ohms (Ω).

Question 5

what are some things that affect the resistance in a wire? (list 5)

Answer 5

some things that affect the resistance in a wire are…

length
temperature
material
Cross-sectional area
Wire composition and impurities

Question 6

what is ohms law?

Answer 6

Ohm’s Law describes the relationship between current, voltage, and resistance.