ballistic galvanometer
Quick Summary
A ballistic galvanometer is a type of galvanometer designed to measure electric charge. Unlike a standard galvanometer that measures current by deflection, a ballistic galvanometer's deflection is proportional to the total charge that passes through its moving coil, or to a short-duration voltage pulse. This is achieved through a design that typically involves a coil with higher inertia and a smaller torque, allowing it to indicate the presence of an electric charge by a single impulse. The quantity of electricity is then determined by the initial deflection of the coil.12
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