because you can detect if is to far you can and if is to short still can...
An electroscope is an instrument used to detect static electricity.
Electrostratic induction brings opposite electrical charges to the surface of a material and can be combined with a material to produce static electricity. Hope that helps!
electroscope
toyurs
Electroscopes detect electric charge by the motion of a test object due to the Coulomb electrostatic force. The electric potential or voltage of an object equals its charge divided by its capacitance, so electroscopes can be regarded as crude voltmeters. The accumulation of enough charge to detect with an electroscope requires hundreds or thousands of volts, so electroscopes are only used with high voltage sources such as static electricity and electrostatic machines.
An electroscope is an instrument used to detect static electricity.
Electrostratic induction brings opposite electrical charges to the surface of a material and can be combined with a material to produce static electricity. Hope that helps!
Electroscope
An electroscope is an instrument for detecting the presence of static electricity.
electroscope
toyurs
Electroscopes detect electric charge by the motion of a test object due to the Coulomb electrostatic force. The electric potential or voltage of an object equals its charge divided by its capacitance, so electroscopes can be regarded as crude voltmeters. The accumulation of enough charge to detect with an electroscope requires hundreds or thousands of volts, so electroscopes are only used with high voltage sources such as static electricity and electrostatic machines.
electroscope
When the probe of the electroscope is brought near a charge, free charges in the electroscope rod are either attracted to or repelled from the probe. This leaves a net charge at the other end of the rod (since the electroscope as a whole is electrically neutral). Since the other end of the rod is charged, its parts repel each other (since like charges repel). Thus, the gold-leaf indicators spread apart.
build up of static charge
Answercurrentelectricityformatsticky
The term used to describe the build up of electric charge on a non-conductive material due to friction is static electricity.