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How would you zero the VOM on the direct current voltage?

To zero a VOM on DC voltage, leave it unconnected - in DC voltage mode - and then adjust the meter zero screw until it reads zero.


What is the DC output if DC input is used in an ac step up transformer?

The DC output will be zero because transformers do not operate on DC there would be a slight peak when switched but then it would settle to zero. Transformers require a changing magnetic field to transfer power.


What VOM range would be selected to measure a DC current in milliamps?

The lowest amperage range on the VOM should be used to measure milliamps. To get a very accurate reading a digital VOM should be used as an analogue VOM usually loads the line that it is reading.


What is frequency of dc?

You can say DC voltage has a frequency of zero Hz.Because it is unidirectional in nature (may be positive or negative)


Why use DC circuit when frequecy is zero?

DC has no frequency.


Why frequency of DC current is zero?

frequency if it will not zero then we cant tell its dc ...AnswerFrequency is the number of alternations per unit time. As d.c. doesn't alternate, then zero divided by any quantity of time is zero!


Is DC signal is periodic?

Yes DC is periodic with zero frequency........and undefined fundamental time period To........


What are the applications and advantages of single phase power supply varies fom 0V to 13V DC?

This DC voltage variation is typically used in controllers; zero (o) is stop and 13 Volts is maximum. More typical is zero to 5 volt or zero to 10 volt DC control.


Will an inductor work on DC?

An inductor cannot work in dc because the frequency is zero there by making the inductive reactance zero as a consequenceAnswerOf course an inductor can work in a d.c. circuit!


What is AC offset?

Non-zero initial condition is called DC offset. DC offset is bad, and needs to be removed by HP filter as they cause distortion, non-linearity. If the mean/average amplitude of the wave is zero it has no DC-offset.


When an AC 5A and dc Current of 5A applied simultaneously to the circuit then what it happen?

A DC ammeter will read zero


Is lightning a ac or a DC?

Lightning causes a DC transient waveform (A large initial current that decays to zero).