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- 1. Multiple Choice
The circuit shown contains three ammeters X, Y and Z.
Which ammeter has the largest reading?
X
Y
Z
They all have the same reading.
- 2. Multiple Choice
The diagram shows two resistors connected in a circuit.
What could be the combined resistance of this arrangement of resistors?
4.0Ω
6.0Ω
9.0Ω
18Ω
- 3. Multiple Choice
A student uses the circuit shown to determine the resistance of the two identical resistors.
The voltmeter reading is 2.2V and the ammeter reading is 0.25A.
What is the resistance of each resistor?
0.275Ω
0.55Ω
4.4Ω
8.8Ω
- 4. Multiple Choice
The diagram shows a circuit containing three ammeters P, Q and R.
Which statement about the readings on the ammeters is correct?
The reading on P is equal to the reading on Q.
The reading on P is equal to the reading on R.
The reading on Q is greater than the reading on P.
The reading on Q is greater than the reading on R.
- 5. Multiple Choice
Identical resistors are connected together to form arrangements X, Y and Z.
What is the correct order of the resistances of the arrangements from the largest to the smallest?
X → Y → Z
Y → X → Z
Z → X → Y
Z → Y → X
- 6. Multiple Choice
A circuit contains a cell of electromotive force (e.m.f.) 2.0V, three resistors, three ammeters and two voltmeters. One ammeter is labelled P and one voltmeter is labelled Q.
The readings on the other two ammeters and on the other voltmeter are shown.
What is the reading on ammeter P and what is the reading on voltmeter Q?
P : 1.5 A
Q : 1.5 V
P : 1.5 A
Q : 2.5 V
P : 2.5 A
Q : 1.5 V
P : 2.5 A
Q : 2.5 V
- 7. Multiple Choice
Resistors of resistance 1.0Ω, 2.0Ω and 3.0Ω are connected in parallel across the terminals of a cell.
Which statement is correct?
The currents in the resistors are equal.
The sum of the currents in the three resistors is equal to the current in the cell.
The sum of the potential differences (p.d.’s) across the resistors is equal to the electromotive force (e.m.f.) of the cell.
The potential difference across the 3.0Ω resistor is greater than the potential difference across the other two resistors.
- 8. Multiple Choice
The diagram shows a circuit including a lamp, an electric bell and three switches S1, S2 and S3. The lamp and bell are not faulty.
The bell is ringing but the lamp is not lit. Which switches are closed?
S1 only
S1 and S2 only
S1 and S3 only
S1, S2 and S3
- 9. Multiple Choice
A 12V battery is connected to a combination of 2.0Ω resistors as shown.
What is the current in the battery?
1.5A
2.0A
4.0A
6.0A
- 10. Multiple Choice
A potential difference of 3 V is applied to a network of resistors. the ammeter reads 0.5A.
What is the current flowing through the 6 Ω resistor?
0.5 A
0.167 A
0.333 A
1.0 A
- 11. Multiple Choice
an unknown value of potential difference is applied to a network of resistors.
the ammeter shows reading of 2A.
what is the value for potential difference across the cell?
42 V
24 V
16.5 V
5.33 V
- 12. Multiple Choice
Calculate the effective resistance of the resistors.
40 Ω
0.25 Ω
3.2 Ω
1.6 Ω
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