What are the advantages of weins bridge?

Due to the advantages like good frequency stability, very low distortion and ease of tuning, a Wien bridge oscillator becomes the most popular audio frequency range signal generator circuit. This type of oscillator uses RC feedback network so it can also be considered as RC oscillator.

1. Why is Weins bridge better for measurement of capacitance?
2. Which is the disadvantage of Wein bridge oscillator?
3. Why do we use Wein bridge oscillator?
4. What is the principle of Wein bridge oscillator?
5. What is the function of Carey Foster bridge?
6. How Wien bridge can be used for experimental determination of frequency?
7. What are the advantages and disadvantages of Hartley oscillator?
8. Which is better RC phase shift or Wein bridge oscillator?
9. Where is Wien bridge oscillator used?
10. Why Wien bridge oscillator uses positive and negative feedback?
11. What is lead lag network in Wien bridge oscillator?
12. Which amplifier is used in Wien bridge oscillator?
13. What is frequency of a Wien bridge oscillator?
14. What is the advantage of Carey Foster bridge over the meter bridge?
15. What is the limitation of Carey Foster bridge?
16. What will happen if the bridge wire is non uniform?

Why is Weins bridge better for measurement of capacitance?

The accuracy of the bridges lies between 0.1 to 0.5 percent. The bridge is used for various other applications like capacitance measurement, harmonic distortion analyser and in the HF frequency oscillator. The Wien's bridge is frequency sensitive. Thereby, it is difficult to obtain the balance point in it.

Which is the disadvantage of Wein bridge oscillator?

Which of these is a disadvantage of the Wien Bridge oscillator? Explanation: A Wien Bridge oscillator provides a stable low distortion output over a wide range of frequency. However, the number of components required is high and the Wheatstone bridge applied cannot be used for high resistance values. 6.

Why do we use Wein bridge oscillator?

The Wien bridge oscillator is used to find unknown values of components. In most of the cases this oscillator is used in the audios. The oscillators are designed simply, size is compressed and it has stable in frequency output.

What is the principle of Wein bridge oscillator?

The Wien Bridge Oscillator uses a feedback circuit consisting of a series RC circuit connected with a parallel RC of the same component values producing a phase delay or phase advance circuit depending upon the frequency. At the resonant frequency ƒr the phase shift is 0^o.

What is the function of Carey Foster bridge?

In electronics, the Carey Foster bridge is a bridge circuit used to measure medium resistances, or to measure small differences between two large resistances. It was invented by Carey Foster as a variant on the Wheatstone bridge.

How Wien bridge can be used for experimental determination of frequency?

Wien's bridge is suitable for measurement of frequencies from 100 Hz to 100 kHz. It is possible to obtain an accuracy of 0.1 to 0.5 percent. Because of its frequency sensitivity, the Wien's bridge may be difficult to balance unless the waveform of the applied voltage is sinusoidal.

What are the advantages and disadvantages of Hartley oscillator?

Disadvantages. It cannot be used as a low-frequency oscillator since the value of inductors becomes large and the size of the inductors becomes large. The harmonic content in the output of this oscillator is very high and hence it is not suitable for the applications which require a pure sine wave.

Which is better RC phase shift or Wein bridge oscillator?

The main difference between phase shift and Wien bridge oscillator is that the R-C phase shift oscillator introduces 180° phase shift during the amplifier stage, while Wien bridge oscillator uses a non-inverting amplifier. So in Wien bridge type there is no phase shift necessary through the feedback network.

Where is Wien bridge oscillator used?

Some of the applications of the Wein bridge oscillator as given below. These are highly used for audio testing. Clock signals for testing filter circuits can be generated by this oscillator. Used in distortion testing of power amplifiers.

Why Wien bridge oscillator uses positive and negative feedback?

A wein-bridge oscillator has two paths for feedback. It uses both positive and negative feedbacks with one path each. The path for positive feedback form output is through the lead lag circuit and for negative feedback is through the voltage divide. Thus, a wein-bridge oscillator uses both types of feedback.

What is lead lag network in Wien bridge oscillator?

Wein Bridge Oscillator Circuit. ... R-C bridge circuit (Wien bridge) is a lead-lag network. The phase'-shift across the network lags with increasing frequency and leads with decreasing frequency. By adding Wien-bridge feedback network, the oscillator becomes sensitive to a signal of only one particular frequency.

Which amplifier is used in Wien bridge oscillator?

Wien bridge oscillator is an audio frequency sine wave oscillator of high stability and simplicity. The feedback signal in this circuit is connected to the non-inverting input terminal so that the op-amp is working as a non-inverting amplifier.

What is frequency of a Wien bridge oscillator?

Wien-Bridge networks are low frequency oscillators which are used to generate audio and sub-audio frequencies ranging between 20 Hz to 20 KHz.

What is the advantage of Carey Foster bridge over the meter bridge?

Carey Foster Bridge Advantages

The Carey Foster bridge is a modified form of the meter bridge in which the effective length of the wire is considerably increased by connecting a resistance in series with each end of the wire. This increases the accuracy of the bridge.

What is the limitation of Carey Foster bridge?

By using Carey foster bridge, the values of resistances R and S can be compared and measured directly concerning length. The resistances P, Q, and slide contact are eliminated. The constant resistance is excessive when the edges of the connected wires, copper strips, and resistance end tips are not clean.

What will happen if the bridge wire is non uniform?

If the metre bridge wire is not of uniform area of cross section, how will it affect the observations ? ... As Resistance(R)=ρL/A., hence R is inversely proportional to the area of cross-section and hence if the area of cross-section is not unifrom then there will be change in the resistance of the wire.