Telephone.
There are 2 you could use, one being a wind sock mostly used at airports or a turbine usually used to make electricity but may also measure the force of wind.
A protractor is used for drawing and measuring angles.
the instrument that the used was an intelligent brain
This instrument is an adequate type of balance.
The term "load" when used in electrical terminology is a device that uses electricity.
Telephone, as in land lines. Cellular phones use electromagnetic radiation.
An instrument like handbell but used in electricity and stereo.
The device that measures how much electricity is used is called a meter.
An electroscope is an instrument used to detect static electricity.
Ammeter
Electricity used to send or socialize with other technology users.
the first method used to send messages by electricity.
an amplifier
transistor
to send power through them so that electricity can get to your home
An electroscope is an early scientific instrument. It is used to detect and measure electricity or an electric charge on a body.
If this question is asking about the box supplied by your utility company which counts the kilowatt.hours you used, so they can send you a bill for electricity, it is called an electricity meter. If you are asking about the name of the standard unit used to measure a quantity of electricity used, it is called the kilowatt.hour (or k.Wh for short.)