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b) False
c) True
d) True
e) False
2. pump= power supply
pipes= wires
water flow= Electric current
Radiator= Heater
3. conventional current flows around the circuit from positive to negative. The electron flows in the opposite direction to the conventional current.
b) The current in a circuit does not get used up as it flows around the circuit.
4a) potential difference
b) batteries can have different potential differences.
c) more current will flow because the potential difference has increased by adding more batteries
5. A brightly lit 0.01
B unlit 100
c dimly lit 10
a) anything in a circuit that slows down the flow of a current
bi) I did it alr
ii) material A
ci) resistance = potential difference ÷ current
ii) material B
MEASURING CURRENT AND POTENTIAL DIFFERENCE
1a) amperes/ amps
b) ammeter
c) 2A
2a) voltmeter
b)
c)
3a) the potential difference, it will supply.
b) no, it is not safe. Because 5v is the maximum potential difference that can be safely put across the bulb. The battery supplier 12v which is higher than 5v.
4. The buzzer is the one that looks like a bowl
bulb is the one with an X in the middle
Ammeter is the one with an A in the middle
the battery is the lines
cell in the one thick line and one thin line
the motor is the one with an M in the middle
5.
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