ROBO | Ohm's Law & Series vs Parallel Circuits

Voltage

• “push” in electricity

• measured in volts

• represented as V

• obtained by multiplying the value of current and resistance

Current

• the flow of electric charge

• measured in amperes or amps

• represented as I

• obtained by dividing voltage by resistance

Resistance

• how much a component resists current

• measured in ohms (Ω)

• represented as R

• obtained by dividing voltage by current

Ohm’s Law

• explains the relationship between voltage, current, and resistance

• represented as V=IR

Forward Voltage

is the voltage consumed in order to power component, must be subtracted from the supply voltage in problem solving

Series Circuit

• components are connected across a single path

• the same current flows through all components

• voltage is shared across all components

• the components experience a lower voltage compared to parallel circuits

• if one component fails, the whole circuit fails

• this circuit is safer to add components to

Parallel Circuit

• components are connected side by side

• the total current is the sum of the current in each branch

• each branch experiences the same voltage

• the components experience a higher voltage compared to series circuits

• if one component fails, the rest of the circuit keeps working

• this circuit is more dangerous to add components to