1. an instrument for measuring electric charge or potential difference
Usage: scientific

Examples

• The scientist used an electrometer to measure the static charge on the balloon.
• Early electrometers were essential tools in the study of electricity.
• The electrometer detected even small amounts of electrical charge.
• Laboratory electrometers must be carefully calibrated for accurate readings.
• The gold-leaf electrometer was a common instrument in 19th-century physics.
• Modern digital electrometers provide precise measurements of electrical potential.