Moving Coil Ballistic Galvanometer assignment help, Moving Coil Ballistic Construction. Work done in twisting the suspension wire by an angle θ = 1/2cθ 2. A ballistic galvanometer is a type of sensitive galvanometer; commonly a mirror galvanometer. In operation the unknown quantity of charge Q (in coulombs) is simply: Q = k d {\displaystyle Q=kd} Q=kd. Its construction is similar to that of a ballistic galvanometer, but its coil is suspended without any restoring forces in the . A ballistic galvanometer is one used to measure an electrical blow, or impulse. In the field of projectile, this instrument is useful in motion.

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Unlike a current-measuring galvanometer, the moving part has a large moment of inertiathus giving it a long oscillation period. The potential difference between the voltage and the shunt resistance are equal. The galvanometer is the device used for detecting the presence consfruction small current and voltage or for measuring their magnitude.

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Moving Coil Ballistic Galvanometer Assignment Help Homework Help Online Live Physics Help

The change in the coil position is consgruction only to the quantity of charge. The phosphorous bronze suspends the coil between the north and south poles of a magnet. Your email address will not be published. We are working to help as many students as we can.


The galvanometer constant is 1C per It is rectangular or circular and has the number of turns of fine copper wire. Hemant More December 25, 9: English words that begin with b. When the switch S connects to terminal 2 then the capacitor becomes charged.

A ballistic galvanometer is a type of sensitive galvanometer; commonly a mirror galvanometer. It consists of a rectangular coil of thin copper wire wound on a non-metallic frame of ivory.

A cylindrical soft iron core C is place symmetrically inside the coil between the magnetic poles which are also made cylindrical in shape.

Still another way of standardising the ballistic galvanometer is to discharge through it a known quantity of electricity, namely from a condenser of known capacity, charged to a known potential This has no particular advantage over the methods This iron core concentrates the magnetic field and helps in producing radial field. Let c be the restore torque per unit twist of the suspension wire. Moving Coil Ballistic Galvanometer.

Ballistic galvanometer

The other current carrying coil is the lower suspension whose torque effect is negligible. Leave a Reply Cancel reply Your email address will not be published.

It depends on the deflection of the coil which is directly proportional to the charge passes through it. By multiplying the equation 7 from the above equation we get.


The working principle of the ballistic galvanometer is very simple. A small circular mirror is attached to the suspension wire.

The moment of inertia means the body oppose the angular movement.

Leave a Comment Cancel Your email address will not be published. The suspended type consists of a rectangular coil of thin insulated copper wires having a large number ballietic turns. If the coil has a high moment of inertia, then their oscillations are large. In ballistic galvanometercopper wire coil is bound on a non-conducting frame, the moment of inertia of the coil is large and its suspension has a small torsional constant.

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Load a random word. The charge has to pass through the coil as quickly as possible and before the coil stars moving.

Moving Coil Ballistic Galvanometer

When the current passes through the coil, the torque acts on it. After deflection the instrument returns slowly to its original reading.

The q be the total charge passes through the coil.