Circuits & Kirchhoff Laws

Q. According to Kirchhoff's Current Law, if three currents enter a junction as 2A, 3A, and 1A, what is the total current leaving the junction?
  • A. 6A
  • B. 5A
  • C. 4A
  • D. 3A
Q. According to Kirchhoff's Current Law, if three currents enter a junction as 2A, 3A, and 4A, what is the total current leaving the junction?
  • A. 1A
  • B. 3A
  • C. 5A
  • D. 9A
Q. According to Kirchhoff's Current Law, if three currents enter a junction as 2A, 3A, and 4A, what is the current leaving the junction?
  • A. 1A
  • B. 3A
  • C. 5A
  • D. 9A
Q. According to Kirchhoff's Current Law, if three currents entering a junction are 2A, 3A, and 5A, what is the total current leaving the junction?
  • A. 10A
  • B. 5A
  • C. 3A
  • D. 2A
Q. According to Kirchhoff's Voltage Law, the sum of the potential differences around any closed loop in a circuit must equal what?
  • A. Zero
  • B. The total current
  • C. The total resistance
  • D. The total power
Q. According to Kirchhoff's Voltage Law, the sum of the potential differences around any closed loop in a circuit is equal to what?
  • A. Zero
  • B. The total current
  • C. The total resistance
  • D. The total power
Q. If a battery provides a voltage of 9 V and is connected to a circuit with a total resistance of 3 ohms, what is the power consumed by the circuit?
  • A. 27 W
  • B. 18 W
  • C. 9 W
  • D. 3 W
Q. If a circuit contains a 12V battery and two resistors in series of 3Ω and 9Ω, what is the current flowing through the circuit?
  • A. 0.5A
  • B. 1A
  • C. 1.5A
  • D. 2A
Q. If a circuit contains a 9V battery and three resistors (R1 = 3Ω, R2 = 3Ω, R3 = 3Ω) in parallel, what is the total current supplied by the battery?
  • A. 1A
  • B. 2A
  • C. 3A
  • D. 4A
Q. If a circuit has a 10V source and a total resistance of 5Ω, what is the total current in the circuit?
  • A. 1A
  • B. 2A
  • C. 3A
  • D. 4A
Q. If a circuit has a 12V battery and two resistors of 3Ω and 6Ω in series, what is the total current flowing through the circuit?
  • A. 1A
  • B. 2A
  • C. 3A
  • D. 4A
Q. If a circuit has a 12V battery and two resistors of 4 ohms and 8 ohms in series, what is the voltage across the 8 ohm resistor?
  • A. 4 V
  • B. 8 V
  • C. 6 V
  • D. 12 V
Q. If a circuit has a 15V battery and two resistors (5Ω and 10Ω) in series, what is the voltage across the 10Ω resistor?
  • A. 5V
  • B. 10V
  • C. 15V
  • D. 0V
Q. If a circuit has a 15V battery and two resistors (R1 = 5Ω, R2 = 10Ω) in series, what is the voltage across R2?
  • A. 10V
  • B. 5V
  • C. 15V
  • D. 0V
Q. If a circuit has a 15V battery and two resistors of 5Ω and 10Ω in series, what is the power dissipated by the 10Ω resistor?
  • A. 1.5W
  • B. 2.5W
  • C. 3.75W
  • D. 5W
Q. If a circuit has a 24V battery and two resistors of 6Ω and 12Ω in series, what is the voltage across the 12Ω resistor?
  • A. 8V
  • B. 12V
  • C. 16V
  • D. 18V
Q. If a circuit has a 9V battery and two resistors of 3Ω and 6Ω in series, what is the voltage across the 6Ω resistor?
  • A. 3V
  • B. 6V
  • C. 9V
  • D. 4.5V
Q. If a circuit has a current of 2 A flowing through a resistor of 5 ohms, what is the voltage across the resistor?
  • A. 5 V
  • B. 10 V
  • C. 2 V
  • D. 1 V
Q. If a circuit has a current of 2A flowing through a 5Ω resistor, what is the power dissipated by the resistor?
  • A. 5W
  • B. 10W
  • C. 15W
  • D. 20W
Q. If a circuit has a current of 2A flowing through a 5Ω resistor, what is the voltage across the resistor?
  • A. 10V
  • B. 5V
  • C. 2.5V
  • D. 1V
Q. If a circuit has a current of 3A flowing through a 10Ω resistor, what is the power dissipated by the resistor?
  • A. 30W
  • B. 10W
  • C. 90W
  • D. 15W
Q. If a circuit has a current of 3A flowing through a 5Ω resistor, what is the power dissipated by the resistor?
  • A. 5W
  • B. 10W
  • C. 15W
  • D. 20W
Q. If a circuit has a current of 3A flowing through a 5Ω resistor, what is the power dissipated in the resistor?
  • A. 15W
  • B. 9W
  • C. 5W
  • D. 3W
Q. If a circuit has a current of 5A flowing through a 10Ω resistor, what is the power dissipated by the resistor?
  • A. 25W
  • B. 50W
  • C. 75W
  • D. 100W
Q. If a circuit has a current of 5A flowing through a resistor of 10Ω, what is the voltage across the resistor?
  • A. 5V
  • B. 10V
  • C. 15V
  • D. 50V
Q. If a circuit has a total current of 3 A and a total resistance of 6 ohms, what is the voltage supplied by the battery?
  • A. 9 V
  • B. 6 V
  • C. 3 V
  • D. 12 V
Q. If a circuit has a total current of 5 A and a total resistance of 10 ohms, what is the voltage across the circuit?
  • A. 50 V
  • B. 5 V
  • C. 10 V
  • D. 2 V
Q. If a circuit has a total current of 5A and a total resistance of 10Ω, what is the total voltage supplied by the battery?
  • A. 25V
  • B. 50V
  • C. 75V
  • D. 100V
Q. If a circuit has a total resistance of 10Ω and a current of 1.5A, what is the voltage supplied by the battery?
  • A. 15V
  • B. 10V
  • C. 5V
  • D. 20V
Q. If a circuit has a total resistance of 10Ω and a current of 2A flowing through it, what is the total voltage supplied by the battery?
  • A. 5V
  • B. 10V
  • C. 15V
  • D. 20V
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