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Conversion of Galvanometer to Voltmeter( Circuit Connection)

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Posted 5 years ago
03, Conversion, of, Galvano, to, Voltmeter, eng
Category: Education
Description: This is the circuit connection for converting a galvanometer into a voltmeter. In this circuit, high resistance should be connected to the galvanometer in series and a voltmeter should also be connected to the resistance+galvanometer series arrangement. We have used a resistance box to provide the high amount of resistance required for the conversion of the galvanometer into the voltmeter.
Duration: 58 seconds
Rating: 8/10 - Good
Definition: SD
Published: January 25, 2012
Uploader: Abhay Shenoy

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Edurite • 1 year ago
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CBSE Practicals • 1 year ago
To determine resistance of a galvanometer by half-deflection method and to find its figure of merit. :- https://goo.gl/s281EK To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same :-https://goo.gl/Zz9CEy To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same. :-https://goo.gl/Zz9CEy resistance of galvanometer by half deflection method and its figure of merit using a shunt resistance If this helped, Please make a donation of anything above Rs 10 here : http://bit.ly/CBSE-Practicals :) Subscribe - http://goo.gl/mMMZGF Section A:- 1. To determine resistance per cm of a given wire by plotting a graph for potential difference versus current (Ohm's Law) https://goo.gl/uawQJW . 2. To find resistance of a given wire using meter bridge and hence determine the resistivity (specific resistance) of its material. :- https://goo.gl/pzBq33 3. To verify the laws of combination (series) of resistances using a meter bridge. :- https://goo.gl/pzBq33 4. To verify the laws of combination (parallel) of resistances using a meter bridge. :- https://goo.gl/pzBq33 5. To compare the EMF of two given primary cells using potentiometer. :- https://goo.gl/6fAUY2 6. To determine the internal resistance of given primary cell using potentiometer. :- https://goo.gl/9LZ2NE 7. To determine resistance of a galvanometer by half-deflection method and to find its figure of merit. :- https://goo.gl/b3nSjv 8. To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same. https://goo.gl/hgcnRR 9. To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same. https://goo.gl/hgcnRR 10. To find the frequency of AC mains with a sonometer. :- https://goo.gl/pqaKE0 Section B :- 1. To find the value of v for different values of u in case of a concave mirror and to find the focal length. :- https://goo.gl/psgmaA 2. To find the focal length of a convex mirror, using a convex lens. :- https://goo.gl/kAT3Gn 3. To find the focal length of a convex lens by plotting graphs between u and v or between 1/u and 1/v. :- https://goo.gl/KWmJ1X 4. To find the focal length of a concave lens, using a convex lens. https://goo.gl/W4INBc 5. To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation. :- https://goo.gl/Rc1U8e 6. To determine refractive index of a glass slab using a travelling microscope. https://goo.gl/lLHCr2 7. To find refractive index of a liquid by using convex lens and plane mirror. :- https://goo.gl/sxjRiF 8. To draw the I-V characteristic curve for a p-n junction in forward bias and reverse bias. :- https://goo.gl/S59IE0 9. To draw the characteristic curve of a zener diode and to determine its reverse break down voltage. https://goo.gl/SPPt9O 10. To study the characteristic of a common - emitter npn or pnp transistor and to find out the values of current and voltage gains. https://goo.gl/o1V74z
amritacreate • 1 year ago
This video channel is developed by Amrita University's CREATE http://www.amrita.edu/create ▶ For more Information @ http://amrita.olabs.edu.in/?sub 1&brch 6&sim 26&cnt 1 ▶ Amrita Online Lab Project website http://www.olabs.edu.in/ ▶ Subscribe @ https://www.youtube.com/user/amritacreate http://www.youtube.com/amritavlab ▶ Like us @ https://www.facebook.com/CREATEatAmrita Copyright © 2016 Amrita University Developed by Amrita University & CDAC Mumbai. Funded by MeitY (Ministry of Electronics & Information Technology) Conversion of Galvanometer to Ammeter :- A galvanometer is a device used to detect feeble electric currents in a circuit. It has a coil pivoted (or suspended) between concave pole faces of a strong laminated horse shoe magnet. When an electric current passes through the coil, it deflects. The deflection is proportional to the current passed. A galvanometer can detect only small currents. Thus, to measure large currents it is converted into an ammeter. It can be converted into an ammeter by connecting a low resistance called shunt resistance in parallel to the galvanometer. Value of resistance is so adjusted that most of the current passes through the small resistance , "shunt". This video explains how to convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same.
amritacreate • 1 year ago
This video channel is developed by Amrita University's CREATE http://www.amrita.edu/create ▶ For more Information @ http://amrita.olabs.co.in/?sub 1&brch 6&sim 152&cnt 1 ▶ Amrita Online Lab Project website http://www.olabs.edu.in/ ▶ Subscribe @ https://www.youtube.com/user/amritacreate http://www.youtube.com/amritavlab ▶ Like us @ https://www.facebook.com/CREATEatAmrita Copyright © 2016 Amrita University Developed by Amrita University & CDAC Mumbai. Funded by MeitY (Ministry of Electronics & Information Technology) Figure of Merit of a Galvanometer :- A galvanometer is a device used to detect feeble electric currents in a circuit. It consists of a coil suspended between the poles of a powerful magnet. As current passes through the coil, it deflects. It can be detected from the deflection on galvanometer needle. The deflection is proportional to the current passed through it. Its working is based on the principle that a coil placed in a uniform magnetic field experiences a torque when an electric current is set up in it. The deflection of the coil is determined by a pointer attached to it, moving on the scale. When a coil carrying current I is placed in a radial magnetic field, the coil experiences a deflection θ which is related to I as I kθ, where k is a constant of proportionality and is termed as figure of merit of the galvanometer. This video explains how to determine the resistance of a galvanometer by half deflection method and to find its figure of merit.
Doc Schuster • 4 years ago
Connect your circuit components carefully. Ammeters can be easily damaged! I guess if you connect your voltmeter wrong, you'll just get bad readings. And stop saying "ampmeter." It sounds like you're multiplying current times distance. Pshaw.
tick Links • 10 months ago
Why do you want to convert a Galvanometer into a Voltmeter? You want to measure large voltages and do not want to blow the Galvanometer. Short and Simple explanation.
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Class 12: Physics: Moving charges and magnetism-II: Conversion of Galvanometer into Voltmeter
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Practicals 1