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When current is passed throgh a galvanometer, the coil oscillates about its mean position before it comes to rest.
To bring the coil to rest immediately, the coil is wound on a metallic frame.
Now, when the coil oscillate, eddy currents are set up in the metallic frame, which opposes further oscillations of the coil.
This inturn enables the coil to attain its equilibrium position almost instantly.
Since the oscillation of the coil die out instantaneously, the galvanometer is called dead beat galvanometer.
Immanuel Connelly
Wiki User
∙ 11y agoWhen current is passed throgh a galvanometer, the coil oscillates about its mean position before it comes to rest.
To bring the coil to rest immediately, the coil is wound on a metallic frame.
Now, when the coil oscillate, eddy currents are set up in the metallic frame, which opposes further oscillations of the coil.
This inturn enables the coil to attain its equilibrium position almost instantly.
Since the oscillation of the coil die out instantaneously, the galvanometer is called dead beat galvanometer.
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Why is the lamp and scale arrangement in a ballisitics galvanometer at a distance of 1 meter from the galvanometer?
for the convenience of calculations
What is ballistic galvanometer.Give the construction and theory of moving coil ballistic galvanometer.?
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 >>>>
How do you convert galvanometer to an ohmmeter?
"An ohmmeter is an electrical instrument that measures electrical resistance, the opposition to an electric current."The unit of measurement for resistance is ohms (Ω).It is useful device for rapid measurement of resistance. It is consist of galvanometer and adjustable resistance Rs of known value and a cell connected in series. The resistance R to be measured is connected between the terminals.The series resistance Rs is so adjusted that when the terminals are short circuited i.e., when R = 0, the galvanometer gives full scale deflection. So the extreme graduation of the usual scale the galvanometer is marked 0 for resistance measurement. When terminals are not joined no current passes through the galvanometer and its deflection will be zero . Thus zero of the scale marked as infinity. . When R is not infinite , the galvanometer deflects to some intermediate point depending on the value of R scale can be calibrated to read the resistance directly.
How do you produce electricity from magnetism?
One way you can produce electricity is by using a U shaped magnet and pushing a metal string in the U shaped magnet!You use a galvanometer attached to the string and when you push it, it will become electrical energy! (A galvanometer measures electricity.)
What is coil galvanometer meter and its application?
Moving coil galvanometre is a device which is used to detect current in a curcuit.
Why A sensitive galvanometer cannot be stable?
A sensitive galvanometer cannot be stable. Explain Why?
What is the difference between the construction of a moving coil galvanometer and a ballistic galvanometer?
What is the difference between the construction of a moving coil galvanometer and a ballistic galvanometer?
What is a NULL Point of a galvanometer?
Its a point on the galvanometer where the galvanometer shows no deflection as no current passes through it.
Does a galvanometer have a reversed current or not?
The current is reversed in a galvanometer
Why tangent galvanometer is called tangent galvanometer?
because in tangent galvanometer earth magnetic field and magnetic field of magnet inside galvanometer are perpendicular to each other
How you convert galvanometer into ammeter in detail?
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.
What is weston galvanometer?
The weston type galvanometer is a moving coil galvanometer in which a pointer is attached to the coil for measuring deflection due to torque .
Steps in making a galvanometer?
A galvanometer is used to test an electrical current. A galvanometer can be made using a compass and a thin gauge of wire.
What are applications of ballistic galvanometer?
application of Ballistic Galvanometer 1) measurements of electric charges
Why do you need to set a galvanometer to 0?
Zero is the normal position of the galvanometer when there is no detection in process.
Why galvanometer are used in electronic instruments that measures low current and voltage?
The galvanometer is very sensitive.
Why is the lamp and scale arrangement in a ballisitics galvanometer at a distance of 1 meter from the galvanometer?
for the convenience of calculations
