Major Competitive Exams

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Q. In a circuit with a 9V battery and two resistors of 3 ohms and 6 ohms in series, what is the voltage drop across the 6 ohm resistor?
  • A. 6V
  • B. 3V
  • C. 9V
  • D. 4.5V
Q. In a circuit with 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. In a circuit with a 9V battery and two resistors of 3Ω and 6Ω in series, what is the voltage across the 6Ω resistor? (2022)
  • A. 3V
  • B. 6V
  • C. 9V
  • D. 12V
Q. In a circuit with a voltage of 24V and a current of 6A, what is the resistance? (2020)
  • A.
  • B.
  • C.
  • D.
Q. In a circuit with an inductor, what happens to the current when the voltage is suddenly increased? (2020)
  • A. Increases immediately
  • B. Decreases immediately
  • C. Increases gradually
  • D. Decreases gradually
Q. In a circuit with three resistors in series (2 ohms, 3 ohms, and 5 ohms), what is the total resistance?
  • A. 10 ohms
  • B. 5 ohms
  • C. 3 ohms
  • D. 2 ohms
Q. In a circuit with three resistors R1, R2, and R3 connected in series, if R1 = 2Ω, R2 = 3Ω, and R3 = 5Ω, what is the total resistance?
  • A.
  • B. 10Ω
  • C.
  • D.
Q. In a circuit with two inputs A and B, if A = 0 and B = 0, what is the output of an OR gate?
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Q. In a circuit with two loops, if the current in the first loop is 2 A and in the second loop is 3 A, what is the total current entering a junction where these loops meet?
  • A. 1 A
  • B. 5 A
  • C. 6 A
  • D. 2 A
Q. In a circuit with two loops, if the current in the first loop is 5 A and the second loop is 3 A, what is the current through a shared resistor of 2 ohms?
  • A. 1 A
  • B. 2 A
  • C. 3 A
  • D. 5 A
Q. In a circuit with two resistors in parallel, if one resistor is 4 ohms and the other is 6 ohms, what is the equivalent resistance?
  • A. 2.4 ohms
  • B. 10 ohms
  • C. 24 ohms
  • D. 3.6 ohms
Q. In a circuit with two resistors in parallel, if one resistor is 4Ω and the other is 12Ω, what is the total current flowing through the circuit when connected to a 24V battery?
  • A. 2A
  • B. 3A
  • C. 4A
  • D. 6A
Q. In a circuit with two resistors in parallel, if one resistor is 6Ω and the other is 3Ω, what is the total current flowing if the voltage across the circuit is 12V?
  • A. 2A
  • B. 4A
  • C. 6A
  • D. 8A
Q. In a circuit with two resistors in parallel, if one resistor is 6Ω and the other is 3Ω, what is the total current flowing through the circuit when connected to a 12V battery?
  • A. 2A
  • B. 4A
  • C. 6A
  • D. 8A
Q. In a circuit with two resistors in parallel, if one resistor is 6Ω and the other is 3Ω, what is the total current if a voltage of 12V is applied across the combination?
  • A. 2A
  • B. 4A
  • C. 6A
  • D. 8A
Q. In a circuit with two resistors in parallel, if one resistor is 6Ω and the other is 3Ω, what is the total current flowing if the voltage across the parallel combination is 12V?
  • A. 2A
  • B. 4A
  • C. 6A
  • D. 8A
Q. In a circuit with two resistors in series, if R1 = 4Ω and R2 = 6Ω, what is the total resistance?
  • A.
  • B.
  • C.
  • D. 10Ω
Q. In a circuit with two resistors in series, if the total resistance is 12 ohms and one resistor is 4 ohms, what is the value of the other resistor?
  • A. 8 ohms
  • B. 4 ohms
  • C. 12 ohms
  • D. 16 ohms
Q. In a circuit with two resistors in series, if the total voltage across the circuit is 12V and the resistors have values of 4Ω and 6Ω, what is the voltage across the 4Ω resistor?
  • A. 4V
  • B. 6V
  • C. 8V
  • D. 12V
Q. In a circuit with two resistors in series, if the total voltage across the circuit is 12V and the resistors are 4Ω and 6Ω, what is the voltage across the 4Ω resistor?
  • A. 4V
  • B. 6V
  • C. 8V
  • D. 12V
Q. In a circuit, a capacitor is charged and then discharged through a resistor. What is the time constant of the circuit?
  • A. RC
  • B. C/R
  • C. R/C
  • D. 1/RC
Q. In a circuit, if a capacitor is fully charged, what is the voltage across it?
  • A. Zero
  • B. Equal to the source voltage
  • C. Half of the source voltage
  • D. Double the source voltage
Q. In a circuit, if the current is 5A and the resistance is 10Ω, what is the voltage? (2020)
  • A. 15V
  • B. 50V
  • C. 5V
  • D. 10V
Q. In a circuit, if the current is 5A and the resistance is 10Ω, what is the voltage across the resistor? (2021)
  • A. 15V
  • B. 50V
  • C. 5V
  • D. 10V
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 current is doubled while the resistance remains constant, what happens to the power? (2020)
  • A. It doubles
  • B. It quadruples
  • C. It remains the same
  • D. It halves
Q. In a circuit, if the resistance is doubled while the voltage remains constant, what happens to the current? (2021)
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
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 circuit, if the voltage across a resistor is 12V and the current through it is 3A, what is the resistance?
  • A. 4 ohms
  • B. 3 ohms
  • C. 2 ohms
  • D. 1 ohm
Q. In a circuit, if the voltage across a resistor is doubled, what happens to the current through it?
  • A. Doubles
  • B. Halves
  • C. Remains the same
  • D. Quadruples
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