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this works with both.

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14y ago
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Q: Is wattmeter is work on ac or dc?
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Related questions

Does watt meter use for ac and dc?

No, on dc the power is measured by the produce of the voltage and current so there is no need for a wattmeter, which would not work on dc anyway.


What is ac wattmeter?

nothing


Can DC series motor work on ac and DC and why?

A dc series motor can work on dc and ac because dc motors are totally reversible.


How does DC to ac power supply work?

If having DC and AC is required then a PWM pulse width modulator is required to chop the DC to make AC


Do laptop work on ac or DC and how?

A laptop runs on DC. Either from the battery, or the external power supply, which converts AC power to DC.


Can a dc motor work in ac?

No it cant


How does auto transformer work with DC supply?

Transformers don't work with DC supplies - they only work on AC.


Does electrical transformer use a DC or AC source?

A transformer is a device to convert high voltage AC to low voltage AC & vice-versa. It works on the principle of induction. Since induction occurs only in an AC supply, a transformer cannot work on DC.. So, it is not possible to convert DC supply to AC using transformer. You would need an inverter to convert DC to AC.


What instrument measures both ac and DC?

hot wire ammmeter or a moving iron ammeter will work for ac and dc.


Why do you still use both ac and DC?

Because some appliances work with ac current and some with dc current.


If DC is applied to the primary of a transformer is there any current in the secondary and if there is then whether ac or DC?

first, understand that a transformer is an AC DEVICE. it wont work on dc...


Write down the advantage of 2-wattmeter method instead of 3-wattmeter method for measuring ac power?

It's cheaper.