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WorksheetsResistance and Resistors
Total questions: 10
Worksheet time: 12mins
Resistance opposes the flow of (a) .
The unit of resistance is (a) .
Select the correct equations.
Current = Voltage / Resistance
Voltage = Current / Resistance
Voltage = Current x Resistance
Resistance = Voltage / Current
Current = Resistance / Voltage
Voltmeter V reads 6.0 V and resistor R has a resistance of 4.0 Ω. What is the current through ammeter A?
(a)
A current of 15 mA is flowing through a 2.0 Ω resistor. What is the potential difference across the resistor?
(a)
In a thermistor, the resistance is high when the (a) is low.
LDR stands for (a) .
Explain how a thermistor is used in a fire alarm.
When resistance in a circuit is low, the current flowing is (a) .
Select the correct shape for the graph of a thermistor or an LDR.
