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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 else can I help you with?
How does a tangent at any point on the magnetic field line show the direction of magnetic field at that point?
The tangent to a magnetic field line at any point indicates the direction of the magnetic field at that specific location. This is because the tangent line represents the direction a compass needle would point if placed at that point on the field line. The magnetic field lines themselves flow from the north pole of a magnet to its south pole, with the tangent pointing in the direction the magnetic field would act on a north pole.
What are applications of ballistic galvanometer?
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.
Which of the following correctly describe magnetic field line?
APEX: Field lines that are close together indicate a stronger magnetic field. They don't affect the magnet that created them. They never cross. They begin on north poles and end on south poles.
Why does the north end of a compass needle dip downwards and does it always behave like this?
You have to realize that the Earth is a sphere and that the magnetic north pole isn't in a direction tangent to the Earth's surface, but rather through the Earth itself. Therefore, a compass needle will dip downwards if it is dense enough to break the surface tension of the fluid it is floating on.
What is the unit to measure the strength of a magnetic field?
We can say magnetic field strength is a measure of magnetic strength of a magnet.. like electric field density in electrostatics.... ex consider a current carrying wire which produce a magnetic field in radial direction... by using ampere law.. we can easily find magnetic field strength at a point (r distance from wire)... H=I/(2*3.14*r).. its like finding a electric field intensity by Guass law.......The magnetic field ranges from less than 30 micro-teslas (0.3 gauss) to 60 microteslas (0.6 gauss) The strength varies daily usually about 25 nanoteslas (nT) with variations every second of 1 nTAnswerMagnetic field strength (symbol H) is defined as the magnetomotive force per unit length of a magnetic circuit, and is expressed in amperes per metre (A/m). The original answer appears to be defining flux density(expressed in teslas), not magnetic field strength.
Why tangent galvanometer is called tangent galvanometer?
A tangent galvanometer is called so because it uses the tangent of the angle through which a magnetic needle is deflected to measure electric current. The horizontal component of the Earth’s magnetic field and a coil carrying current creates a magnetic field that deflects the needle, making it tangent to the circle of the coil.
Applications of reduction factor of tangent galvanometer?
reduction factor is used to find earth's magnetic field and compare galvanometer constants
How tangent galvanometer is used to determine the horizontal component of earth's magnetic field?
by using the formula b=μn/2A(I/TAN Ɵ)....where μ=4πx10 pow(-7)n=number f turns of the coilA=radius of the coil(m)I=current flowing through the coil(A)Ɵ=angle of deflection in the tangent galvanometer.
Why you should take four times reading in tangent galvanometer?
1) to calculate coeficient of error 2) to calculate deviation between the readings to infere a behaviour
What is the use of Tangent Galvanometer?
A Tangent Galvanometer is used to measure small electric currents in a circuit. It works on the principle of the tangent law of magnetism, where the magnetic needle aligns with the magnetic field produced by the current passing through a coil. This alignment allows for the measurement of the current based on the angle of deflection of the needle.
Why needle of tangent galvanometer move by increasing and decreasing current?
The galvanometer is oriented so that the plane of the coil is vertical and aligned along parallel to the horizontal component He of the Earth's magnetic field (i.e. parallel to the local "magnetic meridian"). When an electrical current flow through the galvanometer coil, a second magnetic field H is created. At the center of the coil, where the compass needle is located, the coil's field is perpendicular to the plane of the coil. These two perpendicular magnetic fields add vertically, and the compass needle points along the direction of their resultant He + H. The current in the coil causes the compass needle to rotate by an angle\ \theta.
How do you study earth's magnetic field using a tangent galvanometer?
The expression for tan @ is F/B Here F = mu not n I / 2a mu not = permiability of air which equals to 4pi x 10-7 H/m n = number of turn in the TG a - radius of coil in TG in meter I = the current flowing through in ampere B is the earth's magnetic field. Hence B = F / tan@ Here @ is the angle of deflection in the TG when two perpendicular fields are applied. Here one is earth's magnetic field whose induction is B tesla and F is the magnetic field produced due to flow of current in the TG coil
Reduction factor of tangent galvanometer?
it is the current measured in amphere..
What r the uses of tangent galvanometer?
to detect the sudden change in current.
What is galvanometer constant of tangent galvanometer?
IG=Betanx. in this G is G.constant, I is current, Be is Megnetic field of earth, OK? or anything else?
What is reduction factor of tangent galvanometer?
The reduction factor of a tangent galvanometer is the ratio of the tangent of the angle of deflection produced by a given current to the actual value of that current. It is used to calibrate the instrument so that the deflection angle can be directly related to the current flowing through it.
What is tangent galvanometer?
T.G is a device used for determination of the horizontal component of the magnetic field of the earth,and the internal resistance of T.G T.G consists of : 1-coil of wire of many turns(2 to 500) 2-small magnetic needle at the center of the coil 3-box of resistants
