Fiction 12th Physics Practical Book Pdf


Wednesday, May 15, 2019

This is revised syllabus 12th standard Physics Practical Book for download. Some of As the PDF file of this booklet is very large in size, please be patient while. Where can I download the physics practical experiments for class 12 (CBSE board)?. Views . How can I download Nootan Physics Class 12 book in PDF?. To master the science of physics practical one needs to have a complete and we would like to thank all those who have helped us in preparing this book.

12th Physics Practical Book Pdf

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Note the milli-ammeter and voltmeter readings. Remove the key K and allow the wire to cool, if heated. Again insert the key.

Shift the rheostat contact slightly to increase the applied voltage. Note the milli-ammeter and voltmeter reading.

Repeat step 7 for four different settings of the rheostat. Record your observations in a tabular form. The potential difference across the given wire varies linearly with the current. Theory: Galvanometer is a sensitive device used to detect very low current. 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.

CBSE Class 12 Physics Practical Exam 2019: Syllabus & Tips to Score Maximum Marks

Clean the connecting wires with sand paper and make neat and tight connections as per the circuit diagram 2. Adjust the resistance R from this resistance box to get full scale deflection on the galvanometer dial. Insert the key K2 and keep R fixed. Note down S. Remove plug K2 after noting down the value of shunt resistance, S. Calculate the galvanometer resistance G and figure of merit k of galvanometer using Equations.

Materials Required: Meter bridge, galvanometer, one way key, a resistance box, battery, jockey, two unknown resistance wires, and connecting wires. Procedure: i Measure the unknown resistances X1and X2 separately using the procedure explained in experiment 2, after making the suitable connections as done in experiment 2.

Here you can find the value of unknown resistances without interchanging the R.

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Take at least three sets of observations for balance point lying between 30 cm and 70 cm. Hence the law of combination of resistances in series is verified.

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Materials Required: A meter bridge, galvanometer, one way key, a resistance box, a battery jockey, unknown resistance wire about 1 meter long, screw gauge and connecting wires. Theory: A meter bridge is the practical application of Wheatstone bridge arrangement as shown in figure below. The four resistances are connected to each other as shown and if the bridge is inbalanced state, i.

The unknown resistance 'X' can be found by Meter bridge which uses the principle of Wheatstone bridge.

Find the average diameter of the wire with a screw gauge. From this, obtain the value of its radius r.

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Clean the insulation at the ends of connecting wires with a piece of sand paper. Tighten all plugs of the resistance box RBOX by pressing each plug.

Set up the circuit as shown in Fig. Next, introduce some resistance R in the circuit from the resistance box.

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Move the object needle upright and clamp it at a distance nearly 1. Adjust height of the object needle to move its tip lie on a horizontal line through the optical center of the lens. Note the position of the index mark on the base of object needle.


With the eye closed , see with the right eye from the other end of the optical bench. An inverted and enlarged image of the object needle will be seen. Mount the thick optical needle in the fourth upright near the other end of the optical bench.

Adjust the height of the image needle thick so that its tip is seen in line with the tip of the image when seen with the right eye open. Move the eye towards right.I recovered the lost copy of this blog and it is back to help you again.

Again insert the key. Move the eye towards right. After reaching a certain voltage, called the breakdown voltage, the current increases widely even for a small change in voltage. Adjust the resistance R from this resistance box to get full scale deflection on the galvanometer dial.

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