Major Competitive Exams

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 parallel combination 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 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 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 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 are 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 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, 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 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 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
Q. In a circuit, if the voltage is halved and the resistance remains constant, what happens to the current?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. In a circuit, if the voltage is increased from 5V to 15V while the resistance remains constant at 5 ohms, what is the change in current?
  • A. Increases by 1 A
  • B. Increases by 2 A
  • C. Increases by 3 A
  • D. Increases by 4 A
Q. In a circuit, if the voltage is increased while keeping the resistance constant, what happens to the current?
  • A. It decreases
  • B. It increases
  • C. It remains constant
  • D. It becomes zero
Q. In a circuit, if the voltage is increased while the resistance remains constant, what happens to the current?
  • A. It decreases
  • B. It increases
  • C. It remains the same
  • D. It becomes zero
Q. In a circuit, two capacitors of capacitance 2μF and 3μF are connected in parallel. What is the total capacitance?
  • A. 5μF
  • B. 6μF
  • C. 1.2μF
  • D. 0.6μF
Q. In a circuit, two capacitors of capacitance 3μF and 6μF are connected in parallel. What is the total capacitance?
  • A. 9μF
  • B. 2μF
  • C. 18μF
  • D. 1μF
Q. In a circuit, two capacitors of capacitance 4μF and 6μF are connected in parallel. What is the total capacitance?
  • A. 10μF
  • B. 24μF
  • C. 2.4μF
  • D. 0.4μF
Q. In a circular loop of radius R carrying a current I, what is the magnetic field at the center of the loop?
  • A. μ₀I/(2R)
  • B. μ₀I/(4R)
  • C. μ₀I/(2πR)
  • D. μ₀I/(4πR)
Q. In a circular loop of radius R carrying a current I, what is the magnetic field at the center of the loop according to the Biot-Savart Law?
  • A. B = (μ₀I)/(2R)
  • B. B = (μ₀I)/(4R)
  • C. B = (μ₀I)/(R)
  • D. B = (μ₀I)/(πR)
Q. In a circular path of radius r around a long straight wire carrying current I, what is the line integral of the magnetic field?
  • A. 0
  • B. μ₀I
  • C. μ₀I/2
  • D. μ₀I/4
Showing 5101 to 5130 of 12915 (431 Pages)
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely