Question

The device used for detecting charge (positive or negative) on an object is called:
A. stethoscope
B. telescope
C. kaleidoscope
D. electroscope

Answer 1

Electroscope is the object used for checking on the change of a body

Answer 2

The device used for detecting charge (positive or negative) on an object is called D. electroscope.

Explanation:

• Electroscope is the first electrical measuring instrument.
• It detects electric charge by detecting Coulomb electrostatic force in it.
• This device works only when there is hundreds of voltage, so, it is used only in machines that has high electric charges such as electrostatic machine.
• This device only gives indication of electric charge in it, it does not indicate quantity of charge in it.
• There are two types of electroscope namely gold-leaf electroscope and pith-ball electroscope.