Q. The term “Kibble Balance” is often seen in news is related to which of the following?
‘Kibble Balance’, is a device that was used to measure the Planck Constant and thereby reboot the kilogram.
- Named after its inventor, Bryan Kibble at the U.K.’s National Physical Laboratory (NPL), who conceptualized it in 1975, the Kibble balance is an exquisitely accurate weighing machine.
- Like any balance, it is designed to equalize one force with another: In this case, the weight of a test mass is exactly offset by a force produced when an electrical current is run through a coil of wire immersed in a surrounding magnetic field.
Source: The Hindu