Ac current measurement

[jovin555]

how can i measure ac current flowing to a load without much power loss?i think its possible to use a sense resistor or a current transformer.is there any other method to measure ac current?

 

[barry]

Hall effect sensors.

 

[jovin555]

i would likt to do with some passive components without any sensor.is there any other method?

 

[barry]

You want to measure something without a sensor? Other than a resistor or transformer, I think you're out of luck.

 

[jovin555]

I mean without using a IC or a sensor. only by using resistor,capacitor,transistors etc

 

[FvM]

You've mentioned the commonly used "passive" options in your first post. They'll often require a signal amplifier, but the sensor element itself is passive. Rogowski coil is another possible passive option, a magnetical sensing method without a core.