Q1:
The resistor in the circuit shown is powered by two batteries in parallel that have terminal voltages of 2.5 V each. What is the potential drop across the resistor?
Q2:
Find the potential drop across the resistor in the circuit shown. The batteries powering the circuit each have a terminal voltage of 2.5 V.
Q3:
Find the decrease in potential across the resistor in the circuit shown. The batteries powering the circuit each have a terminal voltage of 2.5 V.
Q4:
The decrease in potential across the resistor in the circuit shown is 12 V. The terminal voltage of one of the batteries powering the circuit is 5.5 V. Find the terminal voltage of the other battery powering the circuit.
Q5:
The decrease in potential across the resistor in the circuit shown is 15 V. The terminal voltage of one of the batteries powering the circuit is 5.5 V. Find the terminal voltage of the other battery powering the circuit.
Q6:
For the circuit below, the value of resistance is .
- A 20.8 Ω
- B 5.2 Ω
- C 2.4 Ω
- D 33.6 Ω
Q7:
The resistor in the circuit shown is powered by two batteries in parallel. One battery has a terminal voltage of 2.5 V. What must be the terminal voltage of the other battery for the potential drop across the resistor to be determinable?
Q8:
Which of the following represents the intensity and the direction of the electric current in the figure shown below?
- A 2 A, out of the node
- B 6 A, out of the node
- C 6 A, towards the node
- D 2 A, towards the node
Q9:
The resistor in the circuit shown is powered by two batteries in parallel that are combined in two different configurations. The batteries have e.m.f's of 3.5 V and 2.5 V respectively. In the first configuration, the positive terminals of the battery are directly connected to each other and the negative terminals are connected to each other. In the second configuration, the positive terminals of each battery are directly connected to the negative terminal of the other battery. Which of the following is a correct statement about how the decrease in potential across the resistor compares in the two configurations?
- A The decrease in potential in both configurations will depend on the internal resistances of the batteries.
- B The decrease in potential will be the same in both configurations.
- C The decrease in potential will be greater in the second configuration.
- D The decrease in potential will be greater in the first configuration.
Q10:
Consider the given circuit. What is the value of ?
- A 6 A
- B 9 A
- C 4.5 A
- D 3 A
Q11:
The potential decrease across one resistor of the circuit shown is known, as is the terminal voltage of the battery powering the circuit. The potential decreases and are unknown. Find .
Q12:
The decrease in potential across one resistor of the circuit shown is known, as is the terminal voltage of the battery powering the circuit. The decrease in potential and are unknown. Find .
Q13:
The value of that makes the reading of the ammeter zero is .
- A 80 Ω
- B 50 Ω
- C 120 Ω
- D 65 Ω
Q14:
The current in two wires of the circuit shown are known. The currents and are unknown. Find .
Q15:
The current in three wires of the circuit shown are known. The currents and are unknown. Find .
Q16:
The current in two wires of the circuit shown are known. The currents and are unknown. Find .
Q17:
From the figure below, the value of equals .
- A 3 A
- B 6 A
- C 7 A
- D 4 A
Q18:
For the circuit below, the intensity of current equals .
- A 1.2 A
- B 2.4 A
- C 4.8 A
- D 3.6 A
Q19:
For the circuit below, what is the intensity of the current passing through the 5 Ω resistance? Give your answer to two decimal places.
- A 0.29 A
- B 0.19 A
- C 0.11 A
- D 0.40 A
Q20:
In the circuit below, the reading of the voltmeter is . Give your answer to two decimal places.
- A 12.50 V
- B 7.30 V
- C 1.62 V
- D 8.92 V
Q21:
In the circuit below, the ratio of to is .
- A
- B 1
- C
- D 3
Q22:
In the circuit below, what is the intensity of the current ?
- A 4 A
- B 3 A
- C 1 A
- D 2 A
Q23:
In the circuit below, the value of is zero. The value of is then .
- A 5 V
- B 12 V
- C 10 V
- D 8 V
Q24:
For the circuit below, calculate the value of that makes the reading of the ammeter zero.
- A 6 Ω
- B 8 Ω
- C 10 Ω
- D 12 Ω
Q25:
For the circuit below, calculate the intensity of . Give your answer to two decimal places.
- A 1.35 A
- B 0.65 A
- C 0.70 A
- D 0.05 A
