# At very low frequencies a series R-C circuit behaves as almost purely?

At very low frequencies a series R-C circuit behaves as almost purely?

## 1 Answer

### Answer :

At very low frequencies a series R-C circuit behaves as almost purely capacitive.

## Related questions

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

Last Answer : At very high frequencies the parallel R-L circuit behaves as purely resistive.

Description : The time constant of a series R-C circuit is given by?

Last Answer : The time constant of a series R-C circuit is given by RC.

Description : Series rc circuits

Last Answer : Series rc circuits

Description : In a series R-C circuit, with the increase in frequency, current (A) Reduces (B) Increases (C) Does not change (D) Becomes zero

Last Answer : In a series R-C circuit, with the increase in frequency, current Increases

Description : A series R-L-C Circuit has a resonant frequency of 1000 Hz. If the values of R, L and C are doubled, the new resonant frequency is

Last Answer : A series R-L-C Circuit has a resonant frequency of 1000 Hz. If the values of R, L and C are doubled, the new resonant frequency is 500 Hz

Description : What is the RMS voltage in a series RL circuit, if the voltage across R and L is 256 V and 192 V respectively? A) 320 V B) 448 V C) 64 V D) None of these

Last Answer : What is the RMS voltage in a series RL circuit, if the voltage across R and L is 256 V and 192 V respectively? A) 320 V B) 448 V C) 64 V D) None of these

Description : If resistance is 20 Q. and inductance is 27 in a R-L series circuit, then time constant of this circuit will be?

Last Answer : 0.1s

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

Last Answer : In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of L or C.

Description : In an AC. circuit, a low value of kVAR compared with kW indicates?

Last Answer : In an AC. circuit, a low value of kVAR compared with kW indicates high power factor.

Description : 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?

Last Answer : 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? 7 V

Description : Parallel rc circuit

Last Answer : Parallel rc circuit

Description : Source free RC circuit 2

Last Answer : Source free RC circuit 2

Description : Source free RC circuit 3

Last Answer : Source free RC circuit 3

Description : Source free RC circuit 4

Last Answer : Source free RC circuit 4

Description : Source free RC circuit 5

Last Answer : Source free RC circuit 5

Description : Source free RC circuit 6

Last Answer : Source free RC circuit 6

Description : Source free RC circuit 7

Last Answer : Source free RC circuit 7

Description : Source free RC circuit 8

Last Answer : Source free RC circuit 8

Description : Series circuit rules

Last Answer : Series circuit rules

Description : Which of the following is true with a series circuit having resistors of different values? A) The total resistance of the circuit is the sum of the individual resistances B) The current across each ... ) The voltage drop across each resistor depends on the value of the resistor D) All the above

Last Answer : Which of the following is true with a series circuit having resistors of different values? A) The total resistance of the circuit is the sum of the individual resistances B) The current across ... voltage drop across each resistor depends on the value of the resistor D) All the above

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

Last Answer : The series and parallel resonance on L-C circuit differs in that series resistance needs a low-resistance source for sharp rise in current.

Description : In a series L-C circuit at the resonant frequency the?

Last Answer : In a series L-C circuit at the resonant frequency the current is maximum.

Description : In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value?

Last Answer : In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value will increase the selectivity of the circuit.

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

Last Answer : In a series resonant circuit, the impedance of the circuit is minimum.

Description : Can An Rc Circuit Be Used As Clock Source For 8085?

Last Answer : Answer :Yes, it can be used, if an accurate clock frequency is not required. Also, the component cost is low compared to LC or Crystal.

Description : Time constant for RC circuit formula τ = RC Where, τ = time constant

Last Answer : Time constant for RC circuit formula τ = RC Where, τ = time constant

Description : The loop equation for a series RLC circuit gives

Last Answer : The loop equation for a series RLC circuit gives

Description : Source transformation Replace the circuit with voltage source in series with a single resistor

Last Answer : Source transformation Replace the circuit with voltage source in series with a single resistor

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

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

Description : 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

Last Answer : In a series RLC high Q circuit, the current peaks at a frequency equal to the resonant frequency

Description : In a series circuit with unequal resistances?

Last Answer : In a series circuit with unequal resistances the highest resistance has the highest voltage drop.

Description : Wire-wound resistors are unsuitable for use at high frequencies because they?

Last Answer : Wire-wound resistors are unsuitable for use at high frequencies because they exhibit unwanted inductive and capacitive effects.

Description : The range of frequencies used in induction heating is :  (A) 0-25 Hz  (C) less than 200 Hz  (B) 50 to 100 Hz  (D) more than 1 kHz

Last Answer : The range of frequencies used in induction heating is : more than 1 kHz

Description : The frequencies and voltage used in Dielectric heating are (A) 10 – 30 MHz, upto 25 kV (B) 50 – 60 Hz, upto 25 kV (C) 10 – 30 MHz, upto 100 V (D) 50 – 60 Hz, 110 V – 230 V

Last Answer : The frequencies and voltage used in Dielectric heating are 10 – 30 MHz, upto 25 kV

Description : In a purely inductive circuit?

Last Answer : In a purely inductive circuit actual power is zero.

Description : What is the power factor of purely resistive circuit.

Last Answer : Unity that is 1

Last Answer : A synchronous machine with low value of short-circuit ratio has lower stability limit.

Description : Accurate measurement of very low resistances is possible with (A) Megger (B) Wheatstone Bridge (C) Kelvin’s Double Bridge (D) Wagner’s Earthing Device

Last Answer : Accurate measurement of very low resistances is possible with Kelvin’s Double Bridge

Description : Arc in a circuit behaves as?

Last Answer : Arc in a circuit behaves as a resistance decreasing with voltage rise across the arc.

Description :  An independent voltage source in series with an impedance ZS=R+jXS delivers a maximum average power to a load impedance ZL when A) ZL = R B) ZL = jXS C) ZL = R-jXS D) ZL = R+jXS

Last Answer :  An independent voltage source in series with an impedance ZS=R+jXS delivers a maximum average power to a load impedance ZL when ZL = R-jXS

Description : Name two methods for measurement of low, medium and high resistance. Give one advantage and one limitation of V- I method.

Last Answer : Methods for measurement of low resistance:  1. Ammeter voltmeter method  2. Kelvin's bridge method  3. Ohm meter method  4. Potentiometer method  5. Digital/analog multi-meter ... must be infinity for perfectly accurate measurement which is not possible.  2. Connection errors.

Description : Name the method used to measure following resistances:- (i) Low resistance (ii) Medium resistance (iii) Insulation resistance (iv) Earth resistance.

Last Answer : Following are the methods used to measure resistances:-  (i) Low resistance: 1.Voltmeter-Ammeter Method 2. Kelvin's Double bridge Method  (ii) Medium resistance: 1.Voltmeter-Ammeter Method 2. ... of Charge Method  (iv) Earth resistance : 1. Fall of Potential Method 2. Earth tester

Description : State the range for low and medium resistance.

Last Answer : Low resistances: less than 1 ohm.  Medium resistances: 1 ohm to 0.1 Mega ohm.

Description : Step-down transformer converts high voltage and low current into:  (A) How voltage and high current (B) High voltage and low current (C) Low voltage and high current (D) None of the above

Last Answer : Step-down transformer converts high voltage and low current into: Low voltage and high current

Description : Which of the following is the least expensive protection for over current in low voltage system?  (A) Rewireable fuse (B) Isolator (C) Oil Circuit breaker (D) Air break circuit breaker

Last Answer : Which of the following is the least expensive protection for over current in low voltage system?  (A) Rewireable fuse (B) Isolator (C) Oil Circuit breaker (D) Air break circuit breaker

Last Answer : Turbine used for low head is Kaplan turbine.

Description : Consider a circuit with four resistors in series connected to a voltage source. What happens to the voltage across each resistor, if the value of each of the resistors is doubled? A) It will double B) It will remain the same C) It will be halved D) It will become zero

Last Answer : Consider a circuit with four resistors in series connected to a voltage source. What happens to the voltage across each resistor, if the value of each of the resistors is doubled? A) It will double B) It will remain the same C) It will be halved D) It will become zero

Description : Explain the operation of RC triggering circuit with neat diagram.

Last Answer : RC triggering circuit: The RC half-wave triggering circuit is as shown in the figure. During negative halfcycle of supply voltage vs, the capacitor C charges through diode D2 and load, ... be triggered at 0° & 180° because the supply voltage is zero and less than finger voltage.

Description : How to Treat Low Blood Sugar ?

Last Answer : How to Treat Low Blood Sugar Low blood sugar or hypoglycemia is a condition usually experienced by diabetics but it's also possible to experience it without being a diabetic yourself. For diabetics, low ... identify the cause of the problem and help you get the proper treatment as soon as possible.

Description : Low Fat Barbecue Chicken

Last Answer : Low Fat Barbecue Chicken Dinner 4 lg. chicken breasts, cubed 1 green pepper, cut up 1 onion, cut up 1/2 to 3/4 c. barbecue sauce 1 to 2 bags Minute Rice, boil-in-bags Put chicken with green ... rice in center of plate. Make a nest and put chicken in center of rice. Looks nice and tastes great.