Question

What Is The Difference Between Galvanometer And Ballistic Galvanometer?

Answer 1

Hint:A galvanometer is a device that detects or measures the magnitude of a tiny electric current. The movement of a magnetic needle or a coil in a magnetic field, which is an integral element of a galvanometer, is commonly used to show the current and its strength.

Complete step-by-step solution:
A galvanometer is an electric current measurement instrument that is electromechanical. Early galvanometers were uncalibrated, but later versions, known as ammeters, were calibrated and could more precisely detect current flow. A galvanometer responds to an electric current running through a coil in a constant magnetic field by deflecting a pointer. Galvanometers can be viewed as a type of actuator. Galvanometers were inspired by Hans Christian Oersted's finding in 1820 that a magnetic compass needle deflects when it is near an electric current wire. They were the first devices for detecting and measuring tiny quantities of electricity.
A sensitive galvanometer, such as a mirror galvanometer, is known as a ballistic galvanometer. The moving portion of a current-measuring galvanometer has a significant moment of inertia, giving it a long oscillation period. It's actually an integrator that measures how much charge is discharged via it. Either a moving coil or a moving magnet can be used. The Grassot Fluxmeter overcomes a specific difficulty that standard galvanometers have. The discharge time for a regular galvanometer must be less than the mechanism's natural period of oscillation. This criterion cannot be satisfied in some applications, notably those using inductors.
The difference between a galvanometer and a ballistic galvanometer is that a galvanometer is used to measure the tiny amount of current that runs through the circuit while a ballistic galvanometer is used to measure the large amount of current that flows through the circuit. The ballistic galvanometer, on the other hand, is used to measure the amount of charge displaced in a short-duration current.

Note:Galvanometers have played an important role in the advancement of science and technology in a variety of domains. For example, in the 1800s, they permitted long-distance communication via undersea cables, such as the first transatlantic telegraph lines, and their precision current measurements were crucial in uncovering the electrical activity of the heart and brain.