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?
There is a wire missing between the battery and the bulb 
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?
Both wires are connected to one end of the battery cell so the battery cell is not in the circuit.
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?
1 mark
The bulb is broken or blown or the filament of the lamp is broken.
Do not accept 'the circuit is not complete'
(d) In this diagram, why is there a reading on the ammeter?
There is a complete circuit, so a current is flowing.
1 mark
Maximum 4 marks
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