84 views
What is application of inductor?

1 Answer

Answer :

Inductors are use in analog circuits.

Like 0 like

Please log in or register to answer this question.

Related questions

29 views

Description : Inductor application and Energy Stored in Magnetic Field

0 answers
153 views

Description : (b) Consider the circuit shown under the DC-steady-state condition. (i) Re-draw the circuit by replacing the capacitor and inductor with open and short-circuit. (ii) ... and the voltage, VC. (iii) Calculate the energy stored in the inductor and capacitor, respectively. 

0 answers
115 views

Description : Why inductor current lags inductor voltage ?

Last Answer : Inductor is a wire wounding structure having a core material it induces emf which is opposite to the voltage supply and proportional to rate of change of current so current lags the voltage in inductor

1 answer
359 views

Description : Explain operation of series inductor filter and find out its ripple factor.

Last Answer : Circuit diagram of series inductor filter :  Operation of Series Inductor Filter : A high value of inductor is connected in series with load. Then the combination is connected across the rectifier. ... Hence increase in current reduces ripple factor. Ripple Factor:- RF = R / 3√2 ω L

1 answer
46 views

Description : Related to inductor state (i) any two types (ii) any two applications 

Last Answer : Ans: i) Types of inductors & their applications:  1) Iron core inductors: Used in Low frequency applications such as filter chokes, amplifiers  2) Air core inductors: Used in high ... frequency upto 100MHz applications such as oscillators, RF amplifiers, Radio and TV receivers, signal generators.

1 answer
223 views

Description : An inductor of Q factor 10 is connected in series with a capacitor having a Q factor of 100. The overall Q factor of the circuit is :  (A) 100/11 (B) 11/100 (C) 110 (D) 1000

Last Answer : An inductor of Q factor 10 is connected in series with a capacitor having a Q factor of 100. The overall Q factor of the circuit is : 100/11

1 answer
63 views

Description : In an isolated output dc-to-dc fly back converter, the high frequency transformer used works as an inductor (a) during turn -on period of the switching device (b) during turn off period of the switching device (c) during both (d) none of these

0 answers
93 views

Description : 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

0 answers
216 views

Description : What is the reactance of a 3H inductor when the frequency is 120 Hz? A. 2260 ohm B. 2060 ohm C. 360 ohm D. 0  

Last Answer : 2260 ohm is the reactance of a 3H inductor when the frequency is 120 Hz.

1 answer
977 views

Description : An inductor at t = 0+ with zero initial conditions acts as   (a) short circuit (b) open circuit (c) current source (d) voltage source 

Last Answer : short circuit, because as time goes an indicator gains low resistance to steady voltage

2 answers
111 views

Description : A pure inductor has power factor of   (a) 1 (b) 1/ 2 (c) 0 (d) None of these 

Last Answer : Zero The current lags behind voltage by 90 degrees in case of a pure inductor  Therefore the power factor = cos{angle between voltage and current}  = cos(90) = 0

3 answers
138 views

Description : What is back EMF in inductor?

0 answers
117 views

Description : What is the difference between a coil and an inductor?

Last Answer : Inductor is covering with insulating material is called coil.so they differentiate between coil and inductor.

1 answer
129 views

Description : A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current decreases.

Last Answer : The question seems to be wrong. Increase in frequency would actually decrease the current through the Inductor. This happens because inductive reactance Xl is directly proportional to frequency. And if frequency increases the value of Xl would ... vice versa. Xl= 2*pi*f*L I=E/Z Z=sqrt(R^2+Xl^2)

1 answer
0 views

Description : An ac voltage V = V0 sin ωt is applied across a pure inductor of inductance L. Find an expression for the current i, flowing in the circuit and show mathematically that the current flowing through it lags behind the ... by a phase angle of π/2. Also draw graphs of V and i versus ωt for the circuit.

0 answers
0 views

Description : An inductor L', and a resistor R', are connected in series to an a.c source. The potential drop across inductor is 160 watts and that across the resistance R' is 120 volt. Find the virtual ... algebric sum of the potential drops across L and R more than this value? If yes, resolve the paradox.

0 answers
0 views

Description : AC Voltage applied to a Pure Inductor and a Pure Capacitor in Series (LC Series Circuit).

0 answers
0 views

Description : When and inductor L and a resistor R in series are connected across a 12V–50 Hz supply, a current of 0.5A flows through the circuit. The current differs in phase from the applied voltage by π/3 radian. Calculate the value of L and R.

0 answers
0 views

Description : In the given LCR series circuit fed by 200V–50Hz a.c. mains. Find (i) current in the circuit (ii) value of inductor L (iii) value of capacitor C and (iv) value of C (for same L) to have power factor of the circuit unity.

0 answers
0 views

Description : An LC circuit contains a 20 mH inductor, and a 50 μF capacitor, of the circuit is negligible. Let the instant, the circuit is closed, be t = 0. The (first instant of) time, at which energy stored would be completely magnetic, is (1) t = 0 (2) t = 1.57 ms (3) t = 3.14 ms (4) t = 6.28 ms

0 answers
0 views

Description : For a pure inductor, or a pure capacitor, connected to an a.c. voltage source, one can say that the instantnaeous power. (1) as well as the average, over a cycle, are both zero (2) may not be zero but ... , over a cycle, is hot zero (4) as well as the average power, over a cycle, are both not zero

0 answers
0 views

Description : State which of the two, the capacitor or an inductor, tends to become a SHORT when the frequency of the applied alternating voltage has a very high value.

0 answers
2 views

Last Answer : Inductor discovers motor (Nikola Tesla)

1 answer
2 views

Last Answer : 1. Authentic In the inductor Resistance Zero Is. 2. Pure In the inductor Power Waste Zero. 3. Inductor Of current In change Tied Gives. 4. This Energy Savings By To keep Can 5. Voltage, Of ... flow Tied Gives No. 6. Orientation Of flow Frequency Increase If found Of the inductor Tied Increase Gets.

1 answer
0 views

Description : In the circuit shown in figure switch S is closed at time t=0 At what time current through `3Omega` resistance and 1H inductor are equal?

Last Answer : In the circuit shown in figure switch S is closed at time t=0 At what time current through `3Omega` resistance and ... 5)/(3))` D. `Insqrt((8)/(3))`

1 answer
4 views

Description : In the figure `V_(ab)` versus time graph along an inductor is shown. Match the following

Last Answer : In the figure `V_(ab)` versus time graph along an inductor is shown. Match the following

1 answer
1 view

Description : A capacitor of capacity `2muF` is changed to a potential different of `12V` . It is then connected across an inductor of inductance `0.6mH` What is th

Last Answer : A capacitor of capacity `2muF` is changed to a potential different of `12V` . It is then ... potential difference across the capacitor is `6.0V` ?

1 answer
1 view

Description : An L-C circuit contains a 0.60 H inductor and a `25muF` capacitor is `3.0xx10^(-5)C?`

Last Answer : An L-C circuit contains a 0.60 H inductor and a `25muF` capacitor is `3.0xx10^(-5)C?`

1 answer
4 views

Description : In a series `LCR` circuit the frequency of a `10 V`, `AC` voltage soure is adjusted in such a fashion that the reactance of the inductor meausers `15

Last Answer : In a series `LCR` circuit the frequency of a `10 V`, `AC` voltage soure is adjusted in such a ... the series combination of `L` and `C`will be:

1 answer
0 views

Description : The current in ampere through an inductor is i(10+20t) Here t is in second. The induced emf in the inductor 4V. Total flux linked with the inductor at

Last Answer : The current in ampere through an inductor is i(10+20t) Here t is in second. The induced emf in the inductor 4V. ... 10 Wb B. 20 Wb C. 30 Wb D. 40 Wb

1 answer
2 views

Description : The current in ampere through an inductor is i(10+20t) Here t is in second. The induced emf in the inductor 4V. The self inductance of the indicator i

Last Answer : The current in ampere through an inductor is i(10+20t) Here t is in second. The induced emf in the inductor 4V. The ... B. `0.4` C. `0.1` D. `1.0`

1 answer
2 views

Description : The potentiak difference across a 2H inductor as a function of time is shown in the figure. At time t=0, current is zero. Current versus time graph ac

Last Answer : The potentiak difference across a 2H inductor as a function of time is shown in the figure. At time t=0, ... across the inductor will be A. B. C. D.

1 answer
0 views

Description : The potential difference across a `2 H` inductor as a function of time is shown in figure. At time `t=0`, current is zero Current `t = 2` second is

Last Answer : The potential difference across a `2 H` inductor as a function of time is shown in figure. At time `t=0`, current is ... B. `3 A` C. `4 A` D. `5 A`

1 answer
0 views

Description : What is the opposition to current flow in an AC circuit caused by an inductor called?

Last Answer : Need answer

1 answer
2 views

Description : What is the phase angle of an ohm inductor in series with an ohm resistor connected to a 5 KHz source?

Last Answer : You need to provide values of resistor and inductor etc to find the phase angle.

1 answer
4 views

Description : In a computer is capable to store single binary bit. A) Capacitor B) Flip flop C) Register D) Inductor

Last Answer : Answer : B

1 answer
4 views

Description : Which of the following devices converts electrical energy into mechanical energy? (a) Dynamo (b) Transformer (c) Electric motor (d) Inductor

Last Answer : Ans:(c)

1 answer
3 views

Description : The component used for tuning a radio is basically a variable – (1) Resistor (2) Condenser (3) Inductor (4) Transformer

Last Answer : (2) Condenser Explanation: A tuning capacitor or tuning condenser is a variable capacitor used in an electronic circuit of a radio. It usually connects in parallel to a loop antenna and its capacitance may be intentionally and repeatedly changed mechanically or electronically.

1 answer
1 view

Description : The 'Choke' used with a tube light is basically – (1) an inductor (2) a capacitor (3) a transformer (4) a resistor

Last Answer : (1) an inductor Explanation: In electronics, a choke is an inductor used to block higher-frequency alternating current (AC) in an electrical circuit, while passing lower-frequency or direct ... created by suddenly interrupting the current in choke, which is connected in series with the tubelight.

1 answer
1 view

Description : The device which transfer the signal from low resistance region to high resistance region is – (1) diode (2) transistor (3) capacitor (4) inductor

Last Answer : (2) transistor Explanation: A transistor transfers a signal from a low resistance to high resistance. It has two PN-junctions: one junction is forward biased and other junction is reverse biased ... is introduced in the low resistance, circuit and output is taken from the high resistance circuit.

1 answer
3 views

Description : The electric charge is stored in a device called: (1) Inductor (2) Capacitor (3) Resister (4) Transformer

Last Answer : (2) Capacitor Explanation: A capacitor is a passive twoterminal electronic component that stores electrical energy in an electric field. The effect of a capacitor is known as capacitance.

1 answer
3 views

Description : As shown in the illustration, the generator field is excited with DC current provided by ____________. EL-0016 A. conductors '1', '2' and '3' B. inductor 'L1' C. rectifier 'CR1' D. winding 'S-2'

Last Answer : Answer: C

1 answer
3 views

Description : The symbol shown as figure 'A' represents a/an ____________. EL-0059 A. transformer B. coil C. shunt field D. inductor

Last Answer : Answer: A

1 answer
5 views

Description : The most inefficient method of voltage reduction, from the standpoint of power loss, even when placed in series with the load, is the use of a/an ____________. A. capacitor B. inductor C. resistor D. transistor

Last Answer : Answer: C

1 answer
10 views

Description : To limit the current flow through a DC voltmeter to as low a value as possible, the moving coil circuit is provided with a/an _____________. A. high series resistance B. high parallel resistance C. series inductor D. external shunt

Last Answer : Answer: A

1 answer
5 views

Description : The most inefficient method of voltage reduction from the stand point of power loss, is a/an _____________. A. capacitor in series with the load B. inductor in series with the load C. capacitor and inductor in series with the load D. resistor in series with the load

Last Answer : Answer: D

1 answer
...