Current Electricity

Q. A 12V battery is connected to a resistor of 4Ω. What is the current flowing through the circuit? (2022)
  • A. 2A
  • B. 3A
  • C. 4A
  • D. 1A
Q. A circuit has a 9V battery and two resistors of 3Ω and 6Ω in series. What is the current flowing through the circuit? (2022)
  • A. 1A
  • B. 2A
  • C. 3A
  • D. 4A
Q. A circuit has a total resistance of 12Ω and a current of 1.5A. What is the voltage across the circuit? (2021)
  • A. 18V
  • B. 12V
  • C. 15V
  • D. 9V
Q. A circuit has a total voltage of 24V and a total resistance of 8Ω. What is the total current in the circuit? (2020)
  • A. 3A
  • B. 2A
  • C. 4A
  • D. 6A
Q. A resistor of 10Ω is connected to a 20V battery. What is the power consumed by the resistor? (2021)
  • A. 40W
  • B. 20W
  • C. 10W
  • D. 2W
Q. A resistor of 10Ω is connected to a 20V power supply. What is the power consumed by the resistor? (2021)
  • A. 40W
  • B. 20W
  • C. 10W
  • D. 2W
Q. If a 10Ω resistor is connected in parallel with a 5Ω resistor, what is the total resistance? (2022)
  • A. 3.33Ω
  • B.
  • C. 7.5Ω
  • D. 15Ω
Q. If a 15Ω resistor is connected in parallel with a 5Ω resistor, what is the equivalent resistance? (2023)
  • A. 3.75Ω
  • B.
  • C.
  • D. 10Ω
Q. If a 5Ω resistor is connected in series with a 10Ω resistor, what is the total resistance? (2022)
  • A. 15Ω
  • B.
  • C. 10Ω
  • D. 20Ω
Q. If a 5Ω resistor is connected to a 10V source, what is the power dissipated? (2023)
  • A. 2W
  • B. 5W
  • C. 10W
  • D. 20W
Q. If a 6Ω resistor is connected in parallel with a 3Ω resistor, what is the equivalent resistance? (2023)
  • A.
  • B. 1.5Ω
  • C.
  • D.
Q. If a 9V battery is connected to a 3Ω resistor, what is the current flowing through it? (2021)
  • A. 1A
  • B. 2A
  • C. 3A
  • D. 4A
Q. If a circuit has a total resistance of 12Ω and a current of 1.5A, what is the voltage across the circuit? (2021)
  • A. 18V
  • B. 12V
  • C. 15V
  • D. 10V
Q. If a circuit has a total resistance of 12Ω and a current of 3A flows through it, what is the voltage across the circuit? (2020)
  • A. 36V
  • B. 12V
  • C. 4V
  • D. 24V
Q. If a circuit has a total resistance of 12Ω and a current of 4A, what is the voltage across the circuit? (2023)
  • A. 48V
  • B. 36V
  • C. 24V
  • D. 12V
Q. If a circuit has a total resistance of 5Ω and a current of 2A, what is the voltage across the circuit? (2022)
  • A. 10V
  • B. 5V
  • C. 2V
  • D. 1V
Q. If a circuit has a total resistance of 8Ω and a current of 4A, what is the voltage across the circuit? (2023)
  • A. 32V
  • B. 24V
  • C. 16V
  • D. 12V
Q. If the current through a resistor is tripled, what happens to the power dissipated in the resistor? (2022)
  • A. Increases by 3 times
  • B. Increases by 9 times
  • C. Remains the same
  • D. Decreases by 3 times
Q. If the resistance of a conductor is doubled, what happens to the current flowing through it when the voltage remains constant? (2022)
  • A. Doubles
  • B. Halves
  • C. Remains the same
  • D. Increases by 1.5 times
Q. If the voltage across a resistor is halved, what happens to the current through it? (2020)
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. If two resistors of 4Ω and 6Ω are connected in series, what is the total resistance? (2023)
  • A. 10Ω
  • B. 24Ω
  • C. 2.4Ω
  • D. 12Ω
Q. In a circuit with a 24V battery and two 8Ω resistors in series, what is the total current? (2022)
  • A. 1A
  • B. 2A
  • C. 3A
  • D. 4A
Q. In a circuit with a 9V battery and a 3Ω resistor, what is the current flowing through the resistor? (2023)
  • A. 3A
  • B. 2A
  • C. 1A
  • D. 4A
Q. In a circuit with a 9V battery and a 3Ω resistor, what is the power dissipated by the resistor? (2021)
  • A. 3W
  • B. 9W
  • C. 6W
  • D. 12W
Q. In a circuit with a 9V battery and a 3Ω resistor, what is the power dissipated in the resistor? (2023)
  • A. 3W
  • B. 9W
  • C. 6W
  • D. 12W
Q. In a circuit, if the current is doubled while the resistance remains constant, what happens to the power consumed? (2020)
  • A. It doubles
  • B. It triples
  • C. It remains the same
  • D. It halves
Q. In a circuit, if the resistance is halved while the voltage remains constant, what happens to the current? (2022)
  • A. It halves
  • B. It doubles
  • C. It remains the same
  • D. It quadruples
Q. In a parallel circuit with two resistors of 6Ω and 3Ω, what is the total resistance? (2019)
  • A.
  • B.
  • C. 1.5Ω
  • D.
Q. What is the current through a 10Ω resistor connected to a 20V battery? (2020)
  • A. 1A
  • B. 2A
  • C. 3A
  • D. 4A
Q. What is the current through a 12Ω resistor connected to a 24V battery? (2023)
  • A. 1A
  • B. 2A
  • C. 3A
  • D. 4A
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