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

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

by

2 Answers

Answer :

If resistance is 20 Q. and inductance is 27 in a R-L series circuit, then time constant of this circuit will be 0.1 s.

by

Answer :

0.1s
by

Related questions

What is the RMS voltage in a series RL circuit, if the voltage across R and L is 256 V and 192 V respectively?

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

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

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.

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

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

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

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.

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

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

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

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.

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

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.

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

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.

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

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.

Source free RL circuit 8

Description : Source free RL circuit 8

Last Answer : Source free RL circuit 8

Source free RL circuit 7

Description : Source free RL circuit 7

Last Answer : Source free RL circuit 7

Source free RL circuit 6

Description : Source free RL circuit 6

Last Answer : Source free RL circuit 6

Source free RL circuit 1

Description : Source free RL circuit 1

Last Answer : Source free RL circuit 1

Source free RL circuit 2

Description : Source free RL circuit 2

Last Answer : Source free RL circuit 2

Source free RL circuit 3

Description : Source free RL circuit 3

Last Answer : Source free RL circuit 3

Source free RL circuit 4

Last Answer : Source free RL circuit 4

Source free RL circuit 5

Last Answer : Source free RL circuit 5

In a series R-C circuit, with the increase in frequency, current

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

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

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

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

In a series RLC high Q circuit, the current peaks at a frequency

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

Series circuit rules

Description : Series circuit rules

Last Answer : Series circuit rules

Which of the following is true with a series circuit having resistors of different values?

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

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

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.

The loop equation for a series RLC circuit gives

Description : The loop equation for a series RLC circuit gives

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

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

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

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

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

In a series circuit with unequal resistances?

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.

What is the total resistance if 5 resistors of 20 Ω each are connected in series?

Description : What is the total resistance if 5 resistors of 20 Ω each are connected in series? A) 100 Ω B) 4 Ω C) 20 Ω D) None of these

Last Answer : What is the total resistance if 5 resistors of 20 Ω each are connected in series? A) 100 Ω B) 4 Ω C) 20 Ω D) None of these

Find the time constant in a series R-L circuit when the resistance is 4 ohm and the inductance is 2 H. a) 0.25 b) 0.2 c) 2 d) 0.5

Description : Find the time constant in a series R-L circuit when the resistance is 4 ohm and the inductance is 2 H. a) 0.25 b) 0.2 c) 2 d) 0.5

Last Answer : d) 0.5

X L and X C in Series

Description : X L and X C in Series

Last Answer : Inductive reactance X L and Capacitive reactance X C in series. Inductive reactance X L of value 60 ohm and Capacitive reactance X C of value 40 ohm are connected in series. 120 volts A C voltage is ... . The current will be 6 ampere. This time current will lead the voltage by 90 degree.

In a R-L-C circuit?

Description : In a R-L-C circuit?

Last Answer : In a R-L-C circuit power is consumed in resistance and is equal to I R, exchange of power takes place between inductor and supply line, exchange of power takes place between capacitor and supply line, exchange of power does not take place between resistance and the supply line.

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

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

Last Answer : The current will be maximum if it is a series rlc circuit.

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

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

Last Answer : since a rlc circuit at resonance behaves like a pure resistive circuit, i.e there is no phase difference between current and voltage, hence the power factor is unity.

In a loss-free R-L-C circuit the transient current is?

Description : In a loss-free R-L-C circuit the transient current is?

Last Answer : In a loss-free R-L-C circuit the transient current is sinusoidal.

An independent voltage source in series with an impedance ZS=R+jXS delivers a maximum average power to

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

what is equivalent resistance when four 4 Ohm resistors are connected in i) series ii) parallel

Description : what is equivalent resistance when four 4 Ohm resistors are connected in i) series ii) parallel

Last Answer : equivalent resistance

State the use of shunt and series resistance used in extension of meter.

Description : State the use of shunt and series resistance used in extension of meter.

Last Answer : Use of shunt and series resistance: i) Use of shunt: To extend the range of Ammeter. ii) Use of series resistance: To extend the range of Voltmeter.

We connected a 35V dc supply to a resistance of 600 Ohm in series with an unknown resistance

Description : We connected a 35V dc supply to a resistance of 600 Ohm in series with an unknown resistance R.A. voltmeter having a resistance of 1.2 kOhm is connected across 600 Ohm resistance and read 5v. The value of resistance R will be

Last Answer : We connected a 35V dc supply to a resistance of 600 Ohm in series with an unknown resistance R.A. voltmeter having a resistance of 1.2 kOhm is connected across 600 Ohm resistance and read 5v. The value of resistance R will be 2.4 kOhm

Consider a circuit with four resistors in series connected to a voltage source. What happens to the voltage

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

Single-phase mid-point controlled rectifier with RL load

Description : Single-phase mid-point controlled rectifier with RL load

Last Answer : Single-phase mid-point controlled rectifier with RL load : The circuit configuration of single-phase midpoint controlled rectifier is shown in the figure. During positive half-cycle of ... some part of next positive half-cycle of voltage with reversed polarity can appear across load.

role of the series resistance connected in PMMC movement.

Description : role of the series resistance connected in PMMC movement.

Last Answer : A PMMC Instrument can be used as voltmeter by just connecting a series resistance with the moving coil. This series resistance is called Voltmeter Multiplier. This combination of moving coil and ... current whose voltage is to be measured. Ideally the resistance of voltmeter should be infinite

1 ,2 ,5 , 12 , 27 , 58 , 121, ? (a) 246 (b) 247 (c) 248 (d) 249

Description : 1 ,2 ,5 , 12 , 27 , 58 , 121, ? (a) 246 (b) 247 (c) 248 (d) 249

Last Answer : The sequence in this series is number into 2 plus the numbers in natural order starting . from 0.

1, 6, 15, ? 45, 66 , 91 (a) 25 (b) 26 (c) 27 (d) 28

Description : 1, 6, 15, ? 45, 66 , 91 (a) 25 (b) 26 (c) 27 (d) 28 

Last Answer : The difference between the number in this series is increased by 4 at each step .

Series rc circuits

Description : Series rc circuits

Last Answer : Series rc circuits

Series and parallel capacitor problem

Description : Series and parallel capacitor problem

Last Answer : Series and parallel capacitor problem 1 : https://youtu.be/MSl5mRwtjAE Series and parallel capacitor problem 2 : https://youtu.be/yGwbpyEtIyw Series and parallel capacitor problem 3 : https:// ... https://youtu.be/_7KwEwWqiNU Series and parallel capacitor problem 10 : https://youtu.be/et8MCWV_OyE

State the principle of solar cell. What is necessity of series and parallel connection of solar cells.

Description : State the principle of solar cell. What is necessity of series and parallel connection of solar cells.

Last Answer : Principle of solar cell:-  Working:- Solar cell operates on principle of Photo-voltaic effect Solar cell works in following steps:  The solar cell is composed of a P-type ... of Voltage & Current rating it is necessity of connecting series and parallel connection of solar cells.

State necessity of series connection and parallel connection of batteries.

Description : State necessity of series connection and parallel connection of batteries.

Last Answer : Necessity of series connection of batteries: 1. The batteries are available with some specific terminal voltages. e. g. 6V, 12V, 24V, 48V etc. 2. If we want to have some terminal voltage other than ... batteries of capacities I1, I2, I3, I4 . are connected in parallel, all having identical emfs.

Two 100W, 200V lamps are connected in series across a 200V supply. The total power

Description : Two 100W, 200V lamps are connected in series across a 200V supply. The total power consumed by each lamp will be in Watts

Last Answer : 4800

Cells are connected in series in order to?

Description : Cells are connected in series in order to?

Last Answer : Cells are connected in series in order to increase voltage available.

Why a dc series motor has a high starting torque?

Description : Why a dc series motor has a high starting torque?

Last Answer : motor