Why the cutoff frequency is taken for 3db?

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asked Mar 10, 2018 by anonymous

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What is meant by 3db frequency?

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asked Mar 24, 2018 by anonymous

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asked May 8, 2018 by anonymous

What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to

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asked Apr 29, 2018 by anonymous

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asked Mar 21, 2018 by anonymous

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asked Apr 29, 2018 by anonymous

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asked Apr 29, 2018 by anonymous

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asked Apr 28, 2018 by anonymous

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asked Apr 28, 2018 by anonymous

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asked Apr 26, 2018 by anonymous

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asked Apr 26, 2018 by anonymous

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asked Mar 24, 2018 by anonymous

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asked Mar 21, 2018 by anonymous

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asked Aug 4, 2019 by anonymous

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asked Sep 6, 2018 by anonymous

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asked Sep 6, 2018 by anonymous

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asked Sep 5, 2018 by anonymous

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asked Sep 5, 2018 by anonymous

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asked Aug 30, 2018 by anonymous

Classify the transformers based on the construction, frequency and power.

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asked Jun 18, 2018 by anonymous

The SCR would be turned OFF by voltage reversal of applied anode-cathode ac supply frequency of

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asked May 8, 2018 by anonymous

In a series R-C circuit, with the increase in frequency, current

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Last answer: In a series R-C circuit, with the increase in frequency, current Increases

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asked May 8, 2018 by anonymous

A series R-L-C Circuit has a resonant frequency of 1000 Hz. If the values of R, L and C are

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asked Apr 29, 2018 by anonymous

In a series RLC high Q circuit, the current peaks at a frequency

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Last answer: In a series RLC high Q circuit, the current peaks at a frequency equal to the resonant frequency

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asked Apr 26, 2018 by anonymous

An accelerometer has input range of 0 to 10g, natural frequency 30 Hz and mass 0.001 kg. The range of the

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Last answer: An accelerometer has input range of 0 to 10g, natural frequency 30 Hz and mass 0.001 kg. The range of the secondary displacement transducer in mm required to cover the input range is 0 to 2.76

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asked Mar 25, 2018 by anonymous

The effective resistance of an iron-cored choke working on ordinary supply frequency...

The effective resistance of an iron-cored choke working on ordinary supply frequency is more than its true resistance because of?

Last answer: The effective resistance of an iron-cored choke working on ordinary supply frequency is more than its true resistance because of iron loss in core.

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asked Mar 25, 2018 by anonymous

In a series L-C circuit at the resonant frequency the?

Last answer: In a series L-C circuit at the resonant frequency the current is maximum.

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69 views 1 answer

asked Mar 25, 2018 by anonymous

In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of?

Last answer: In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of L or C.

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601 views 1 answer

asked Mar 21, 2018 by anonymous

In a Weston frequency meter, the magnetic axes of the two fixed coils are?

Last answer: In a Weston frequency meter, the magnetic axes of the two fixed coils are perpendicular.

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74 views 1 answer

asked Mar 21, 2018 by anonymous

In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of?

Last answer: In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of 0.5 Hz.

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176 views 1 answer

Why the cutoff frequency is taken for 3db?

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