Electricity & Magnetism
Holmarc’s Apparatus Model No: HO-ED-EM-05 has been designed for the study of Biot - Savart’s law. This law can be applied practically to calculate the magnetic field produced by an arbitrary current distribution. It gives fundamental quantitative relationship between an electric current and the magnetic field it produces. The law is also valid for a current consisting of charges flowing through space.
The magnetic field along the axis of wire loops and coils of different dimensions is measured using a Gauss meter. The relationship between the maximum field strength and the dimension is investigated and a comparison is made between the measured and the theoretical effects of position. The Gauss meter probe is mounted on a rail with a scale. It can be moved smoothly and precisely for measurement of magnetic field along the center of the coils. In general, any current loop has a magnetic field and thus has a magnetic dipole moment. This helps to explain why some materials exhibit strong magnetic properties.
Experiment
To study the variation of magnetic field due to Helmholtz coil and single coil carrying current
To determine the magnetic field constant
To measure the magnetic flux density in the middle of various wire loops using the gauss meter
Helmholtz Coil
The Helmholtz Coil consists of two coils that have the same radius and mounted on a base to provide a uniform magnetic field between the coils. The base has a slot that allows the coils to be spaced apart at any distance from 3 cm to 20 cm (center-to-center distance). The separation for Helmholtz coils is marked on the base.
Single Coil
For a single coil of radius r with N turns carrying current I, the magnetic field due to the coil at a distance x along the axis passing through the center of the coil and perpendicular to its plane can be calculated using the Biot - Savart Law . Magnetic field value is measured for different currents.
Scope of Supply
Model No: ED-EM-05-SC
Diameter : 10 cm, 15 cm, 20 cm, 25 cm.
Number of turns : 400
Wire Gauge : SWG 24
Material : Copper
Quantity : 1 no.
Model No: ED-EM-05-CCPS
Input : 230 V, 50 Hz
Output : 40 V DC, 0-1.2 A variable
Quantity : 1 no.
Model No: ED-EM-05-GMAP
Resolution : 0.1 gauss at 200 G range
Range : 200 G, 2 KG, 20 KG and 40 KG
Accuracy : ±0.5%, ±½ digit at 2 KG, 20 KG and 40 KG range ±1%; ±1 digit at 200G range
Temperature : Up to 40°C
Display : 3½ digits, 7 segment LED DPMe
Power : 220 V ±10%, 50 Hz
Quantity : 1 no.
Model No: ED-EM-05-APS
Material : Aluminium
Finish : Black Anodized
Quantity : 1 no.
Model No: ED-EM-05-OR
Length : 1000 mm
Material : Aluminium alloy
Finish : Black Anodized
Quantity : 1 no.
Instruction Manual
Established in 1993, Holmarc Opto-Mechatronics Ltd manufactures variety of scientific and engineering instruments for research, industry and education.
ISO 9001:2015 Made in INDIA
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