Questions on Electric Circuits
Q2
Nikki tries to set up four electric circuits.
(a) In this diagram the ammeter reading is zero. What is wrong with this circuit?
![](electricitydiagram2.png)
There is a wire missing between the battery and the bulb ![](../../../graphics/symbols/nuclides/ticksmall.png)
Accept 'there is a wire missing' or 'the bulb is not connected to the battery'
Accept 'it is not a complete circuit'
1 mark
(b) In this diagram the ammeter reading is zero. What is wrong with this circuit?
![](electricitydiagram2a.png)
Both wires are connected to one end of the battery cell so the battery cell is not in the circuit. ![](../../../graphics/symbols/nuclides/ticksmall.png)
Do not accept 'there is an incomplete circuit'
1 mark
(c) In this diagram the ammeter reading is zero. Why is this not a complete circuit?
![](electricitydiagram2b.png)
1 mark
The bulb is broken or blown or the filament of the lamp is broken.![](../../../graphics/symbols/nuclides/ticksmall.png)
Do not accept 'the circuit is not complete'
(d) In this diagram, why is there a reading on the ammeter?
![](electricitydiagram2c.png)
There is a complete circuit, so a current is flowing. ![](../../../graphics/symbols/nuclides/ticksmall.png)
1 mark
Maximum 4 marks