What is the difference between the construction of a moving coil galvanometer and a ballistic galvanometer?
Its a point on the galvanometer where the galvanometer shows no deflection as no current passes through it.
A galvanometer is a type of ammeter an instrument for detecting and measuring electric current. A galvanometer can be converted into ammeter by connecting resistance in parallel with it.
because in tangent galvanometer earth magnetic field and magnetic field of magnet inside galvanometer are perpendicular to each other
galvanometer is a device use to measure current.
By attaching a resistance in parallel connection with the galvanometer. Or when a low resistor connected in parallel with galvanometer ,the galvanometer is converted in ammeter. and the resistor is called shunt resistance.
To convert a galvanometer to an ohmmeter an external battery is attached in series with galvanometer. This will drive a current through an external unknown resistance and measure the resulting current using the galvanometer.
A galvanometer is used to test an electrical current. A galvanometer can be made using a compass and a thin gauge of wire.
The weston type galvanometer is a moving coil galvanometer in which a pointer is attached to the coil for measuring deflection due to torque .
A galvanometer is an instrument used for detecting electric currents.
i want this answer
Andre Marie Ampere is credited with the discovery of galvanometer in1824.
a galvanometer can be converted into ammeter by connecting a resistance in parallel with it
A sensitive galvanometer cannot be stable. Explain Why?
Zero is the normal position of the galvanometer when there is no detection in process.
we have to add a high resistance in series with the galvanometer to convert it into voltmeter
application of Ballistic Galvanometer 1) measurements of electric charges
To convert a galvanometer into an ammeter, you connect a suitable shunt resistance parallel to the coil of the galvanometer.The value of this shunt resistance is low. To convert a galvanometer into a voltmeter you connect a suitable high resistance in series with the coil of the galvanometer.
for the convenience of calculations
The galvanometer is very sensitive.
Some common applications of a tangent galvanometer are as follows: used to measure the magnitude of the horizontal component of the geomagnetic field, compare the galvanometer constants.
A normal galvanometer measures current. But a B.G measures charge due to impulse in the coil (sudden flow of charges for a short interval of time).
GalvanometerA clamp meterit is AMMETERgalvanometergalvanometerIt is a clamp meterA current meter. One with a meter movement not a digital one.
Measure the voltage across the terminals and read the current from the galvanometer at the same time.
major disadvantage is that moving coil galvanometer is not suitable for a.c measurement