Current, Resistance and Potential difference

What is the equation linking charge, current and time?

Charge = current x time

Q = I x t

What is the equation linking potential difference, current and resistance?

V = I x R

(Ohms law)

What is the unit for current?

Amperes (amps) (A)

What is the unit of resistance?

Ohms

What is the unit of potential difference?

Volts (V)

In a series circuit, how does current behave?

Same current flows through all components.

In a parallel circuit, how does current behave?

Current splits between the branches.

In a series circuit, how does potential difference behave?

Shared across the components.

In a parallel circuit, how does potential difference behave?

It is the same across each branch.

In a series circuit, how does resistance behave?

Total resistance = sum of individual resistances.

In a parallel circuit, how does resistance behave?

Total resistance is less than the smallest individual resistor.

What does Ohm’s law state?

Current is directly proportional to potential difference across a resistor at constant temperature.