The voltage gain of a tuned amplifier is ……………. at resonant frequency

Which of the following, also known as a Thomson filter provides the desired frequency response, but has a constant time delay in the passband?

Sallen-Key filters are

When filters are cascaded, the roll-off rate

When current feedback (negative) is applied to an amplifier, its input

An oscillator whose frequency is charged by a variable dc voltage is known as

A circuit that rejects or stops frequencies over a narrow range but allows frequencies above and below to pass is the

A maximally flat frequency response is known as

The operation of a relaxation oscillator is based on

When voltage feedback (negative) is applied to an amplifier, its input impedance ………….

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

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

The rate of change of amplitude with frequency in a filter is the

A state-variable filter consist of

………….. is a fixed frequency oscillator

The signal attenuation in the passband of a filter is called

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

An important limitation of a crystal oscillator is ……………

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

In a certain oscillator Av = 50. The attention of the feedback circuit must be …………