Why ballistic galvanometer is called ballistic?

A ballistic galvanometer is a type of sensitive galvanometer; commonly a mirror galvanometer. Unlike a current-measuring galvanometer, the moving part has a large moment of inertia, thus giving it a long oscillation period.

What is a ballistic galvanometer and what is its principle?

The working principle of the ballistic galvanometer is very simple. It depends on the deflection of the coil which is directly proportional to the charge passes through it. The galvanometer measures the majority of the charge passes through it in spite of current.

Why do we use ballistic galvanometer?

The galvanometer which is used for estimating the quantity of charge flow through it is called the ballistic galvanometer. The deflection of the coil which is directly proportional to the charge passes through it. The galvanometer measures the majority of the charge passes through it in spite of current.

What is galvanometer and ballistic galvanometer?

A ballistic galvanometer is a type of sensitive galvanometer; commonly a mirror galvanometer. Unlike a current-measuring galvanometer, the moving part has a large moment of inertia, thus giving it a long oscillation period. It is really an integrator measuring the quantity of charge discharged through it.

How is ballistic galvanometer different from moving coil galvanometer?

The difference between galvanometer and ballistic galvanometer is that a galvanometer is used for measuring the small quantity of current that flows through the circuit. Whereas the ballistic galvanometer is used for measuring the quantity of charge that is displaced in a current of a short duration of time.

What is damping in ballistic galvanometer?

Galvanometer damping. The proper amount of resistance at which the motion just ceases to be oscillatory is called the critical external damping resistance (CXDR). When shunted by its CXDR, the galvanometer is said to be critically damped. With more resistance it is underdamped and with less it is overdamped.

What do you mean by electromagnetic damping in a ballistic galvanometer?

The electromagnetic damping force is proportional to the induced eddy current, strength of the magnetic field and the speed of the object. Which implies that faster the object moves, greater will be the damping and slower the motion of object lower will be damping which will result in the smooth stopping of the object.

What is difference between ballistic galvanometer & Fluxmeter?

Definition: The meter which is used for measuring the flux of the permanent magnet such type of meter is known as the flux meter. The fluxmeter is the advanced form of the ballistic galvanometer which has certain advantages like the meter has low controlling torque and heavy electromagnetic damping.

What is the difference between ballistic galvanometer and moving coil galvanometer?

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.

What is ballistic galvanometer in physics?

: a moving-coil galvanometer that indicates the presence of an electric charge by the single impulse imparted to the coil by a sudden brief current, the quantity of electricity that passes being proportionate to the first deflection of the coil.

What is moving coil ballistic galvanometer?

Moving coil ballistic galvanometer consists of a rectangular coil of thin copper wire wound on a non-metallic frame of ivory. It is suspended by means of a phosphor bronze wire between the pole pieces of a powerful horse-shoe magnet. A small circular mirror is attached to the suspension wire.