why are electrical devices useful Flashcards
1
Q
Which following is the correct equation for the relationship between power, current and voltage?
A
Power = Current x Voltage
2
Q
In a plug, which wire is included as a safety feature?
A
Earth
3
Q
A thermistor and a resistor are connected in series to a 6V battery. What happens to the voltage across the resistor as the thermistor is warmed up?
A
Increases
