It is defined as the current which produces a deflection of one scale division in the galvanometer and is given by,
G= k/NBA
where,
k is the torsion constant.
N is the number of turns in the coil
B is the magnetic field and,
A is the ares of cross section of the coil.
The figure of merit of a galvanometer depends on its sensitivity, which is the amount of deflection for a given current; its damping, which is how quickly the needle returns to zero position after being deflected; and its resistance, which affects the amount of current needed for deflection.
A ballistic galvanometer measures total charge passed through the coil while the deadbeat galvanometer indicates steady state current. Ballistic galvanometers are faster but less accurate due to damping, while deadbeat galvanometers have a faster response time and are more accurate for measuring constant currents.
A ballistic galvanometer measures charge by letting current flow through a coil and measuring the extent of its deflection. A deadbeat galvanometer is designed to quickly dampen the coil's movement to minimize oscillations, making it more suitable for accurately measuring steady currents.
A ballistic galvanometer is used by electricians to measure an electric current. It is commonly used to test whether or not an electric current is present. A ballistic galvanometer consists of a meter that is attached to two probes, one positively charged and one negatively charged. This keeps the user from being electrocuted when an electric charge is present.
Critical damping of a ballistic galvanometer refers to the minimum amount of damping required for the galvanometer's pointer to return to zero without oscillating after being deflected. This ensures a rapid but smooth response to changes in current, preventing overshooting or settling time delays in measurements. Achieving critical damping involves balancing the resistive and inductive components of the galvanometer's damping system.
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What is the difference between the construction of a moving coil galvanometer and a ballistic galvanometer?
It is the amount if current it takes for unit deflection in the given galvanometer. k = I/theta Where k is the figure of merit, I is the current supplied and Theta equals the number of divisions of deflection.
it is amount if current takes for unit diffection in given galvanometer
The figure of merit of a galvanometer depends on its sensitivity, which is the amount of deflection for a given current; its damping, which is how quickly the needle returns to zero position after being deflected; and its resistance, which affects the amount of current needed for deflection.
to get critical damped system
A ballistic galvanometer measures total charge passed through the coil while the deadbeat galvanometer indicates steady state current. Ballistic galvanometers are faster but less accurate due to damping, while deadbeat galvanometers have a faster response time and are more accurate for measuring constant currents.
a ballistic galvanometer is a specially designed galvanometer suitable for measuring the total quantity of electricity or charge displaced by a varying current of short duration such as charging & discharging of a capacitor >>>>
A ballistic galvanometer measures charge by letting current flow through a coil and measuring the extent of its deflection. A deadbeat galvanometer is designed to quickly dampen the coil's movement to minimize oscillations, making it more suitable for accurately measuring steady currents.
A ballistic galvanometer is used by electricians to measure an electric current. It is commonly used to test whether or not an electric current is present. A ballistic galvanometer consists of a meter that is attached to two probes, one positively charged and one negatively charged. This keeps the user from being electrocuted when an electric charge is present.
Critical damping of a ballistic galvanometer refers to the minimum amount of damping required for the galvanometer's pointer to return to zero without oscillating after being deflected. This ensures a rapid but smooth response to changes in current, preventing overshooting or settling time delays in measurements. Achieving critical damping involves balancing the resistive and inductive components of the galvanometer's damping system.
Ballistic galvanometers are used in applications where a very short-duration current measurement is required, such as measuring the charge of particles in particle physics experiments or determining the output of pulsed power supplies. They are also used in high-speed photography to capture events that occur in a very short period of time.