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Why is the core of a moving coil galvanometer made of soft iron?
The term galvanometer is used to refer to a meter which can measure small currents, usually in the mA (10-3A) or mA (10-6A) range. When a soft iron core is used, the magnetic field lines tend to crowd through the core. It is because soft iron core is ferromagnetic in nature. As a result, the strength of the magnetic field due to the field magnet increases, which in turn increases the sensitivity of the galvanometer.
Need readings for the project- to study the earths magnetic field using a tangent galvanometer?
For current 0.6 A the readings are 34, 34, 36, 36. Number of turns is 5 mu not is 4pi x 10-7 H/m Radius of the coil is 0.075 m Use the formula for B as mu not x [n / 2r] x [I/tan@] @ is the mean deflection in this case it will be 35 deg Hope you would do the rest For other currents namely 0.7, 0.8, 0.9 and 1.0 A we of course need deflections. More over B, earth's mangetic field depends on the place. These readings are meant for Chennai in Tamilnadu, which belongs to the country India
What products are made with francium?
Francium is a highly reactive element that is not commercially used in products. It is extremely rare and radioactive, so its applications are limited to scientific research.
What are examples of Coriolis effect?
The deflection of wind patterns around high and low-pressure systems in the atmosphere. The creation of ocean currents, such as the Gulf Stream in the Atlantic Ocean. The deviation of ballistic missiles and artillery shells due to the rotation of the Earth.
What are the practical applications of environmental geology?
Environmental geology is used in various practical applications such as assessing and mitigating natural hazards like landslides and flooding, managing waste disposal sites to prevent groundwater contamination, evaluating sites for sustainable resource extraction, and studying the impact of human activities on the environment through land use planning and remediation projects.
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?
Why damping is small in ballistic galvanometer?
to get critical damped system
What is differences between ballistic galvonometer and dead beat galvanometer?
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.
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 >>>>
What is the difference between ballistic and a deadbeat galvanometer?
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.
What is Ballistic galvanometer Explain its construction?
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.
What is critical dumping of ballistic galvanometer?
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.
What is figure of merit of a ballistic galvanometer?
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.
Why does the glass mirror used in ballistic galvanometer rotate?
The glass mirror used in a ballistic galvanometer rotates due to the Lorentz force acting on the current-carrying coil placed within a magnetic field. This force causes the coil (and the attached mirror) to rotate, allowing the deflection of the reflected light beam to measure the current passing through the galvanometer.
Why is the lamp and scale arrangement in a ballisitics galvanometer at a distance of 1 meter from the galvanometer?
The lamp and scale arrangement in a ballistic galvanometer is placed at a distance of 1 meter to ensure that the deflection of the galvanometer caused by the current pulse is accurately measured. Placing it at this distance allows for the angular displacement of the galvanometer's coil to be proportional to the charge passing through it, aiding in the precise measurement of the current pulse's magnitude.
Applications of reduction factor of tangent galvanometer?
reduction factor is used to find earth's magnetic field and compare galvanometer constants
How do you determine high resistance by ballistic galvanometer?
http://books.google.co.in/books?id=Y-ruqUWv5UIC&pg=PA157&lpg=PA157&dq=ballistic+galvanometer+leakage+method&source=bl&ots=ZNigwuasnM&sig=KPDIj8E3asAS2xuNjSurDIB3fAA&hl=en&sa=X&ei=6oc8UZ_qIMfPrQf6ooCIDQ&ved=0CD0Q6AEwAw#v=onepage&q=ballistic%20galvanometer%20leakage%20method&f=false
