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WorksheetsGCSE Electricity 2
Total questions: 20
Worksheet time: 11mins
The diagram shows a temperature sensing circuit used to control a heating system in a house.
What quantity does the ammeter measure? (One correct word only needed)
(a)
The diagram shows a temperature sensing circuit used to control a heating system in a house.
The current in the circuit is 3.5 mA when the potential difference across the thermistor is 4.2 V
Calculate the resistance of the thermistor in Ohms (Answer to 2 sig fig, no units needed)
(a)
A student set up the electrical circuit shown in the figure.
The ammeter displays a reading of 0.10 A.
Calculate the potential difference (in Volts) across the 45 Ω resistor. (2 sig fig, no units needed).
(a)
An example of an insulator of electricity is.....
Rubber
Silver
Iron
Copper
1. Which switch or switches must be closed to make the lamps light?
Only switch 1
Only switch 1
Switches 1 and 2
Switches 1 , 2 and 3
If lamp 2 is unscrewed from its holder, what will happen to lamp1?
It will stay lit
It will go out
It will get dimmer
It will dissapear
As the length of a wire increases, the resistance of the wire will
increase
decrease
stay the same
Which resistor has the biggest voltage across it?
2 Ω
3 Ω
4 Ω
all have the same
The total resistance of the circuit is
9 ohms
Less than 9 Ohms
More than 9 Ohms
We cannot tell
The current flowing through the 2 ohms Resistor is 2 Amps, what is the current flowing through the 4 Ohms
(a)
The current flowing through the 2 ohms Resistor is 2 Amps, what is the voltage of the 3 ohms Resistor?
(a)
What component does this graph represent?
fixed resistor
LDR
variable resistor
thermistor
Which component does this I-V graph represent?
Diode
Lamp
Ohmic Conductor (fixed resistor)
Thermistor
What component does the I-V graph represent?
Diode
Lamp
Ohmic Conductor (fixed resistor)
Thermistor
The gradient of this graph is the (a) of the circuit
