It depends on what kind of reading you want.
An electrician will usually carry around a multimeter which can measure voltage, current, and resistance.
Another piece of equipment that can "determine the presence of electric charge" would be a Electromagnetic Field (EMF) detector, since all electrical appliances/wires produce an electromagnetic field.
There could be others, but those are the two I'm aware of.
A voltmeter. Or, perhaps, A Galvanometer
electromagnetic linear actuators
I think it's a volt-meter, not completely sure though
introduction of electromagnetic interference on daily life
safety measures when using a computer
An Amplifier is used to increase the volume of an electrical musical instrument by boosting the signal of the instrument and "amplifying" it through a speaker system.
1-5 88 1.Force-----push or pull Carpet----surface with large friction Friction-----force that exists when one surface rubs on another. Newton-----units of force Gravity----a pull from a large body Spring balance---measures force Lubricants----reduce friction Heat---produced when their is friction. 2.it lost ¾ of its weight. 3.tyre on a road. 4.place rubber mats under the wheels. Why? Because it will increase friction and be able to get you out. 5.b 600n
sources of electromagnetic fileds
A seismograph
horsepower
force-meterfriction
A force-meter measures the force of an object pulled along a surface.
A spring scale :)
a spring scale
The instrument to measure wind resistance is called an anemometer or wind-meter. It is a common instrument used in weather stations.
Used to measure earthquake activity with sound waves.
This instrument is a balance.
A tiltmeter measures changes in the tilt of the earth. :)A tiltmeter is an instrument that measures changes in the tilt of the earth. :)
Motion. Physics. Electromagnetic force; gravitational force. eh?
electrostatic force is the force between the two opposite charges where as the electromagnetic force is movement of electrons