P2 Electricity (Physics 9-1)

a) In which circuit is the current from the cell greatest?

• A

• B

• C

• D

What will TWO increase the size of an electric current? (choose 2)

• Decrease voltage

• Increase voltage

• Increase resistance

• Decrease Resistance

Which equation is correct?

• voltage = current x charge

• voltage = current / charge

• voltage = resistance x current

• voltage = current / resistance

Which component is shown in the V-I curve?

• A filament lamp

• An ohmic resistor

• A piece of wire

• A diode

Which component is shown in the V-I curve?

• A filament lamp

• An ohmic resistor

• A thermistor

• A diode

What is the unit of charge?

• Volt

• Ampere

• Coulomb

• Ohm

What is the equation for charge flow?

• current / time

• time / current

• current x time

In which component does the resistance decrease as the temperature increases?

• Diode

• Variable resistor

• Thermistor

• LDR

In which component does the resistance decrease as the light intensity increases?

• Diode

• Variable resistor

• Thermistor

• LDR

In which type of circuit are all the components in a line?

• Series

• Parallel

• Athletic

• Ohmic