WorksheetsResistance and Resistors
Total questions: 10
Worksheet time: 12mins
Name
Class
Date
1.
Resistance opposes the flow of (a) .
2.
The unit of resistance is (a) .
3.
Select the correct equations.
a)
Current = Voltage / Resistance
b)
Voltage = Current / Resistance
c)
Voltage = Current x Resistance
d)
Resistance = Voltage / Current
e)
Current = Resistance / Voltage
4.
Voltmeter V reads 6.0 V and resistor R has a resistance of 4.0 Ω. What is the current through ammeter A?
(a)
5.
A current of 15 mA is flowing through a 2.0 Ω resistor. What is the potential difference across the resistor?
(a)
6.
In a thermistor, the resistance is high when the (a) is low.
7.
LDR stands for (a) .
8.
Explain how a thermistor is used in a fire alarm.
4 lines
9.
When resistance in a circuit is low, the current flowing is (a) .
10.
Select the correct shape for the graph of a thermistor or an LDR.
a)
b)
c)
d)
100 %
