# In an RLC parallel circuit, the impedance at resonance is

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In an RLC parallel circuit, the impedance at resonance is Maximum.

## Related questions

In parallel RLC resonance circuit at resonance the current will be  (1) Minimum (2) Maximum (3) Zero (4) Infinite

In a series RLC circuit at resonance, the magnitude of the voltage developed across the capacitor  A) Is always zero B) Can never be greater than the input voltage C) Can be greater than the input voltage, however, it is 90° out of phase with the input voltage D) Can be greater than the input voltage, and is in phase with the input voltage

In a series RLC circuit at resonance, which of the following quantities attains maximum value ? (A) Current (B) Voltage (C) Power (D) None of the above

Which of the following statements is incorrect? A) During parallel resonance impedance at resonance is minimum B) During parallel resonance current is magnified C) During series resonance current at resonance is maximum D) During series as well as parallel resonance, the power factor is unity

The power factor at resonance in R-L- C parallel circuit is?

For an RLC series AC circuit, the current at series resistance is (a) maximum at lagging power factor (b) maximum at leading power factor (c) maximum at unity power factor (d) minimum at unity power factor

The Q factor of a coil at resonant frequency 1.5 MHz of an RLC series circuit is 150. The Bandwidth is : - a) 225 MHz b) 1.06 MHz c) 10 KHz d) 10 MHz

Resonance occurs in RLC series circuit when  A) When the supply voltage and current are in phase B) When inductive reactance become equal to capacitive reactance C) When voltage across the inductor become equal to the voltage across the capacitor D) All of the above

A series RLC circuit resonate at 200 Hz. If the capacitance is increased to four times, the circuit will be in resonance at   (a) 100 Hz (b) 200 Hz (c) 400 Hz (d) 800 Hz

Consider the following statements with respect to a high Q, series RLC circuit under resonance 1. The voltage across R is equal to the applied voltage 2. The voltage across L and C are zero 3. The voltage across L and C are equal in magnitude 4. The voltage accross L and C are maximum Which of these statements are correct?

The series and parallel resonance on L-C circuit differs in that?

In an RLC series AC circuit, if frequency is below the resonant frequency, then (a) XC = XL (b) XC < XL (c) XC > XL (d) None of these

In an ac series RLC circuit, the voltage across R and L is 20 V; voltage across L and C is 9 V and voltage across RLC is 15 V. What is the voltage across C?

In a series RLC high Q circuit, the current peaks at a frequency  (1) equal to the resonant frequency (2) greater than the resonant frequency (3) less than the resonant frequency (4) equal to half the resonant frequency

The purpose of a parallel circuit resonance is to magnify?

A parallel AC. circuit in resonance will?

in Series LCR circuit, at resonance:  (1) Current is maximum and power factor is zero (2) Current is maximum and power factor is unity (3) Current is minimum and power factor is unity (4) None of these

Magnitude of current at resonance in R-L-C circuit?

A series RLC circuit has a resonant frequency of 1 KHz and a quality factor Q = 100. If each of the R,L and C is doubled from its original value, the new Q of the circuit is:  (1) 25 (2) 50 (3) 100 (4) 200

In a series RLC circuit, the rms value of voltage across the resistor is 30 V, across the inductor is 60 V and across the capacitor is 20 V. The rms supply voltage would be (A) 110 V (B) 10 V (C) 220 V (D) 50 V

In a series RLC circuit that is operating above the resonant frequency, the current : -  a) lags the applied voltage b) leads the applied voltage c) is in phase with the applied voltage d) is zero

Which of the following is true at resonance in LC circuits? A) The series impedance of the two elements is at a maximum and the parallel impedance is at minimum B) The series impedance of the two elements is at a maximum and the parallel impedance is also at maximum C) The series impedance of the two elements is at a minimum and the parallel impedance is also at minimum D) The series impedance of the two elements is at a minimum and the parallel impedance is at maximum

Two transformers having the same p.u. impedance connected in parallel share the connected load (A) equally (B) in proportion to the respective ratings (C) in proportion to the voltage ratio (D) in proportion to the zero phase displacement

In a half-wave rectifier, if an a.c supply is 60 Hz. Then what is the a.c ripple at output? (A) 30 Hz (B) 60 Hz (C) 20 Hz (D) 15 Hz

Velocity of an electron (in km/S) starting at rest and travelling to a point 100 V above the starting potential is around  A) 3600 B) 4000 C) 5100 D) 6000

When an additional resistor is connected across an existing parallel circuit, the total resistance: A. remains the same B. decreases by the value of the added resistor C. increases by the value of the added resistor D. decreases

An RLC series. circuit remains predominantly inductive

The magnitude of the open-circuit and short circuit input impedance of a transmission line are 100 ohm and 25 ohm respectively. The characteristic impedance of line is:  (1) 25 ohm (2) 50 ohm (3) 75 ohm (4) 100 ohm

The transient current in lossless L-C circuit when excited from an AC source is, sine wave  (a) Critically damped (b) Underdamped (c) Overdamped (d) Undamped

In a series RLC circuit operating below the resonant frequency the current  (a) I leads Vs (b) I lags Vs (c) I is in Phase with Vs (d) None of these

At ______ frequencies the parallel R-L circuit behaves as purely resistive.

In a series resonant circuit, the impedance of the circuit is?

The lossless line of characteristics impedance 300 Ohm is terminated in a pure resistance of 200 Ohm. The value of the standing wave ratio is  (a) 1.5 (b) 0.67 (c) 1.0 (d) 1.25

If the RF transmission is terminated in its Characteristic impedance Z, which of the following statements is wrong : a. The input impedance of transmission line becomes Zc. b. The transmission line acts as an infinite long transmission line. c. The VSWR becomes one d. The VSWR becomes infinite

A 50Ω transmission line is terminated in an impedance of 20-j50. What will be the reflection coefficient? A) 0.69 B) 1.69 C) 6.9 D) 16.9

In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of?

What is parallel and series resonance?

A DC voltage source is connected across a series RLC circuit. Under steady-state conditions, the applied DC voltage drops entirely across the

An emitter follower circuit is widely used in electronic instruments because  (A) Its voltage gain is less than unity  (B) its output impedance is high and input impedance is low  (C) its output impedance is low and input impedance is high  (D) none of the above

In a 3-phase converter circuit during commutation when one SCR in one phase is turned on to turn-off an SCR in another phase, results in (A) voltage notching (B) harmonic distortion (C) voltage sag (D) voltage swell

Consider a circuit with four 10 Ω resistors connected in parallel and the current flowing through the circuit is 5 A. What will be the current if the above 4 resistors are connected in parallel? A) 5 A B) 50 A C) 500 A D) None of these

What is the nature of supply current in parallel RC circuit with reference to the voltage?  (A) In phase (B) Lags by 90 degree (C) Leads by 90 degree (D) Compensates and becomes zero

If a parallel circuit is opened in the main line, the current?

In a series RLC circuit, which one does not change with change in input frequency ? (A) Bandwidth (B) Quality factor (C) Resonant frequency (D) All of them

The current in a circuit with resistance in 6 amp. When an additional resistance of 4 ohms is inserted the current drops to 4 amp. The original resistance in ohms is

For a series resonant circuit, at the half power points,which of the following is true?  (a) Current is half of the current at resonance. (b) Resistance is equal to the reactance. (c) The impedance is half the impedance at the resonance. (d) None of the above