A Voltage Controlled Oscillator (VCO) is an instrument : - a) whose frequency is dependent upon the amplitude of input signal b) whose frequency is independent upon the amplitude of input signal c) whose frequency is dependent upon the frequency of input signal d) none of the above

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Answer :

A Voltage Controlled Oscillator (VCO) is an instrument : - whose frequency is dependent upon the amplitude of input signal

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Description : What is a voltage controlled oscillator?

Last Answer : Voltage controlled oscillator is a free running multivibrator operating at a set frequency called the free running frequency.This frequency can be shifted to either side by applying a dc control voltage and the frequency deviation is proportional to the dc control voltage. 

Last Answer : VCO - Viceroy Commissioned Officer

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Last Answer : The VCO output should be 90 degrees out of phase with respect to the input signal.

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Last Answer : The sweep width in CRO is controlled by: - Horizontal Gain Control

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Last Answer : Which of the following factors limit the deflection of the pointer of a PMMC instrument of about 90o?  1. Its damping mechanism  2. Linearity of magnetic field in which the coil moves  3. Control spring arrangement  4. ... Only 1 and 3 (b) Only 2 and 4 (c) Only 2 and 3 (d) Only 1 and 4 

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Last Answer : Torque/weight ratio of an instrument indicates Sensitivity

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Last Answer : a. Correct for the correct wind so as to stay within controlled airspace

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Description : If a voltage-controlled bus is treated as load bus, then which one of the following limits would be violated?   (a) Active power (b) Reactive power (c) Voltage (d) Phase angle 

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