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Who invented the electrodynamometer?
The electrodynamometer was invented by Werner von Siemens in 1867. It is a type of instrument used to measure electrical power.
How is the power factor of an Electrodynamometer type wattmeter improved?
Power Factor of an electrodynamometer can be improved by connecting a large resistor in series with the current coil.
How long does it take for a voltmeter to work?
If it's an analog voltmeter, it will work as soon as a voltage is applied. If it's a digital meter, it will need to be turned on first, but will respond instantly once it is powered up.
What will happen if the spring breaks in electrodynamometer?
there will be no control in the pointer hence it will show error in the readings
What happens if you accidentally connect the positive lead of a voltmeter to the negative terminal of a 1.5 volt battery and the negative lead to the positive terminal?
Voltmeter will give you opposite readings or will not work at all.
How does an ammeter work?
An ammeter is a low voltage voltmeter in parallel with a small resistance resistor. Current flow through the resistor creates a voltage drop across it which is then measured by the voltmeter.
What is the difference between electrodynamometer and galvanometer?
Electrodynamometer: An instrument that measures large amount of electric current by indicating the strength of repulsion or attraction between the magnetic fields of two sets of coils, one fixed and one movable. whereas, Galvanometer: An instrument for detecting and measuring small electric currents.
Voltmeter in series?
No. Voltmeter in parallel. Ammeter in series.
What is a dc voltmeter?
It is a voltmeter which can only measure direct current.
What does a voltmeter measure voltage in?
A voltmeter measures voltage in volts.
Which type digital voltmeter is the of fatest all digital voltmeter?
You mean fastest? Digital voltmeter gives reading in seconds.
Why there is an extension range of voltmeter when a series resistance not equal to voltmeter is used?
why is extention
