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WorksheetsPhysics Electricity
Total questions: 22
Worksheet time: 14mins
The heating element of an electric iron is made up of:
copper
nichrome
aluminium
iron
The electrical resistance of insulators is
High
Low
Zero
Infinitely high
An electric bulb is connected to a 220V generator. The current is 0.50 A. What is the power of the bulb?
440 W
110 W
55 W
0.0023 W
In the circuits shown, all resistors are identical
Which circuit has the least resistance?
A
B
C
D
State the name of the logic gate A and B
NOT and AND
AND and OR
NOR and NAND
NOT and NOT
A
B
C
D
A student sets up four circuits containing diodes.
Which of the circuits will produce a rectified current through the bulb?
What would be the reading on the voltmeter?
2 V
6 V
4 V
8 V
A
B
C
D
A teacher writes a set of notes about two non-identical bulbs which are connected in parallel
He makes one mistake. Which of the statements below is incorrect?
They have the same current flowing through them
They have the same potential difference across them
They can be switched on and off individually
If one bulb blows, the other will continue to work
Which part of the electric heater must be earthed?
(a)
What is component Z ?
(a)
What is component B
Thermistor
Resistor
Light Dependent Resistor
Relay
What does a NAND gate comprise of ?
AND
NOT
OR
NOR
How are resistance and length interrelated ?
Directly Proportional
Inversely Proportional
How is resistance and cross-sectional area interrelated?
Directly Proportional
Inversely Proportional
What does the voltmeter read?
2 V
3 V
10 V
1 V
What is the reading of the ammeter
0.32 A
0.44 A
1 A
0.28 A
What happens to the resistance of the LDR when it is dark
Resistance decreasae
Resistance increases
Resistance is constant
Resistance is unchanged
What happens to a thermistor on a hot day
Resistance increases
Resistance decreases
Resistance is constant
Resistance is unchanged
