Major Competitive Exams

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Q. In a series RLC circuit, if R = 20Ω, L = 0.1 H, and C = 100μF, what is the resonant frequency? (2020)
  • A. 50 Hz
  • B. 100 Hz
  • C. 159.15 Hz
  • D. 200 Hz
Q. In a series RLC circuit, if the inductive reactance is greater than the capacitive reactance, the circuit is said to be: (2019)
  • A. Resonant
  • B. Capacitive
  • C. Inductive
  • D. Purely resistive
Q. In a series RLC circuit, if the inductive reactance is greater than the capacitive reactance, what type of circuit is it? (2022)
  • A. Resonant
  • B. Inductive
  • C. Capacitive
  • D. Purely resistive
Q. In a series RLC circuit, if the resistance is 10 ohms, inductance is 0.1 H, and capacitance is 100 μF, what is the resonant frequency? (2021)
  • A. 50 Hz
  • B. 100 Hz
  • C. 159 Hz
  • D. 200 Hz
Q. In a series RLC circuit, if the resistance is 10Ω, inductance is 0.1H, and capacitance is 100μF, what is the resonant frequency? (2021)
  • A. 50Hz
  • B. 100Hz
  • C. 159Hz
  • D. 200Hz
Q. In a series RLC circuit, if the resistance is 4 ohms, inductance is 0.1 H, and capacitance is 100 μF, what is the resonant frequency? (2023)
  • A. 50 Hz
  • B. 100 Hz
  • C. 159.15 Hz
  • D. 200 Hz
Q. In a series RLC circuit, if the resistance is 5Ω, inductance is 0.1H, and capacitance is 100μF, what is the resonant frequency? (2022)
  • A. 50Hz
  • B. 100Hz
  • C. 159Hz
  • D. 200Hz
Q. In a series RLC circuit, if the resistance is 5Ω, the inductance is 0.2H, and the capacitance is 10μF, what is the resonant frequency? (2023)
  • A. 50Hz
  • B. 100Hz
  • C. 159.15Hz
  • D. 200Hz
Q. In a series RLC circuit, if the resistance is increased, what happens to the bandwidth of the resonance?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. In a series RLC circuit, if the resistance is increased, what happens to the bandwidth?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. In a series RLC circuit, if the resistance is increased, what happens to the bandwidth of the resonance peak?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. In a series RLC circuit, if the total impedance is 40 Ω, the resistance is 30 Ω, what is the inductive reactance? (2021)
  • A. 10 Ω
  • B. 20 Ω
  • C. 30 Ω
  • D. 50 Ω
Q. In a series RLC circuit, if the total impedance is 50Ω, the resistance is 30Ω, what is the inductive reactance if the capacitive reactance is 20Ω? (2023)
  • A. 10Ω
  • B. 20Ω
  • C. 30Ω
  • D. 40Ω
Q. In a series RLC circuit, what condition must be met for resonance to occur? (2021)
  • A. R = 0
  • B. XL = XC
  • C. R = XL
  • D. R = XC
Q. In a series RLC circuit, what happens at resonance? (2020)
  • A. Impedance is minimum
  • B. Current is minimum
  • C. Voltage is maximum
  • D. Power factor is zero
Q. In a series RLC circuit, what happens to the current at resonance?
  • A. Maximum
  • B. Minimum
  • C. Zero
  • D. Constant
Q. In a series RLC circuit, what happens to the current when the circuit is at resonance? (2021)
  • A. It is maximum
  • B. It is minimum
  • C. It is zero
  • D. It is constant
Q. In a series RLC circuit, what happens to the current when the frequency is increased beyond the resonant frequency?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Becomes zero
Q. In a series RLC circuit, what happens to the impedance at resonance? (2021)
  • A. Minimum
  • B. Maximum
  • C. Zero
  • D. Infinite
Q. In a series RLC circuit, what happens to the total impedance at resonance?
  • A. It is minimum
  • B. It is maximum
  • C. It is equal to R
  • D. It is equal to XL + XC
Q. In a series RLC circuit, what happens to the total impedance when the circuit is at resonance? (2022)
  • A. It is minimum
  • B. It is maximum
  • C. It is equal to R
  • D. It is equal to L
Q. In a series RLC circuit, what is the condition for resonance?
  • A. R = 0
  • B. L = C
  • C. ωL = 1/ωC
  • D. V = I
Q. In a series where each term is double the previous term, starting from 1, what is the 6th term? (2023)
  • A. 32
  • B. 64
  • C. 16
  • D. 8
Q. In a series where each term is multiplied by 3 to get the next term, if the first term is 1, what is the 4th term? (2023)
  • A. 27
  • B. 81
  • C. 243
  • D. 729
Q. In a series where each term is multiplied by 3 to get the next term, starting from 1, what is the 4th term? (2023)
  • A. 27
  • B. 81
  • C. 9
  • D. 243
Q. In a series where each term is the square of its position, what is the sum of the first 4 terms? (2023)
  • A. 30
  • B. 50
  • C. 70
  • D. 90
Q. In a set defined by the constraint 'x > 5', which of the following numbers is a valid member of the set?
  • A. 4
  • B. 5
  • C. 6
  • D. 7
Q. In a set defined by the constraint 'x must be a color in the rainbow', which of the following is NOT a valid element of the set?
  • A. Red
  • B. Blue
  • C. Green
  • D. Pink
Q. In a set defined by the constraint of being a mammal, which of the following is NOT a member of the set?
  • A. Dolphin
  • B. Eagle
  • C. Elephant
  • D. Dog
Q. In a set defined by the constraints {x | x is a square number and x < 50}, which of the following numbers is included?
  • A. 36
  • B. 49
  • C. 50
  • D. 25
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