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Experiment #6 To convert Galvanometer into an ammeter and voltmeter of known resistance

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Posted 1 year ago
Galvanometer, Ammeter (Measuring Instrument), Voltmeter, Electrical Resistance And Conductance (Dimension), Physics (Field Of Study), ohms law, know resistance, figure, figure of merit, half deflection, method, to find, to determine, practical, experiment, physics, wire, potentiometer, glass, optical bench
Category: Education
Description: To determine resistance of a galvanometer by half-deflection method and to find its figure of merit. :- https://goo.gl/s281EKTo 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/Zz9CEyTo 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/Zz9CEyresistance of galvanometer by half deflection method and its figure of merit using a shunt resistanceIf this helped, Please make a donation of anything above Rs 10 here : http://bit.ly/CBSE-Practicals :)Subscribe - http://goo.gl/mMMZGFSection 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/pzBq333. To verify the laws of combination (series) of resistances using a meter bridge. :- https://goo.gl/pzBq334. 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/6fAUY26. To determine the internal resistance of given primary cell using potentiometer. :- https://goo.gl/9LZ2NE7. To determine resistance of a galvanometer by half-deflection method and to find its figure of merit. :- https://goo.gl/b3nSjv8. 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/hgcnRR9. 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/hgcnRR10. To find the frequency of AC mains with a sonometer. :- https://goo.gl/pqaKE0Section 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/psgmaA2. To find the focal length of a convex mirror, using a convex lens. :- https://goo.gl/kAT3Gn3. 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/KWmJ1X4. To find the focal length of a concave lens, using a convex lens. https://goo.gl/W4INBc5. 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/Rc1U8e6. To determine refractive index of a glass slab using a travelling microscope. https://goo.gl/lLHCr27. To find refractive index of a liquid by using convex lens and plane mirror. :- https://goo.gl/sxjRiF8. To draw the I-V characteristic curve for a p-n junction in forward bias and reverse bias. :- https://goo.gl/S59IE09. To draw the characteristic curve of a zener diode and to determine its reverse break down voltage. https://goo.gl/SPPt9O10. To study the characteristic of a common - emitter npn or pnp transistor and to find out the values ofcurrent and voltage gains. https://goo.gl/o1V74z
Duration: 23 minutes and 12 seconds
Rating: 9/10 - Excellent
Definition: SD
Published: September 22, 2015
Uploader: CBSE Practicals

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Physics4students • 5 months ago
Voltmeter is an instrument used to measure potential difference between the two ends of a current carrying conductor. A galvanometer can be converted into a voltmeter by connecting a high resistance in series with it. The scale is calibrated in volt. The value of the resistance connected in series decides the range of the voltmeter. The voltmeter will draw a large current from the circuit and hence the current through the remaining part of the circuit decreases. In such a case the potential difference measured by the voltmeter is very much less than the actual potential difference. The error is eliminated only when the voltmeter has a high resistance. An ideal voltmeter is one which has infinite resistance.
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CBSE Practicals • 1 year ago
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