A state-variable filter consist of

An oscillator differs from an amplifier because

The value of negative feedback fraction is always …………….

For an oscillator to properly start, the gain around the feedback loop must initially be

A feedback circuit usually employs ……………… network

Negative feedback is employed in

The signal attenuation in the passband of a filter is called

One condition for oscillation is ………….

Wien-bridge oscillators are based on

The gain of an amplifier with feedback is known as ………….. gain

The number of poles in a filter affect the

In a Wien-bridge oscillator, if the resistance in the positive feedback circuit are decreased, the frequency

If the output of an amplifier is 10 V and 100 mV from the output is fed back to the input, then feedback fraction is ………..

The signal generator generally used in the laboratories is ………….. oscillator

Which of the following is a fixed tuned bandpass filter that is designed to provide the exact selectivity required by a given application?

phase-shift oscillator has

The main feature of a crystal oscillator is

An LC oscillator cannot be used to produce ……………….. frequencies

When the low-pass and a high-pass filter are cascaded to get a band-pass filter, the critical frequency of the low-pass filter must be