working model of electrical devices class xii ....etc

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141/2016
Maximum: 100 marks
Time : 1 hour and 15 minutes

1. Box of prismatic compass is made of:
(A)copper(B)nickel
(C ) brass(D) none of these

2.The specific gravity of stone should not in any case less than :
(A)2.5 (B)2
(C )1.5 (D)1

3.The rocks which are deposited in layers and can be easily split 

along such layers is known as:
(A)aqueousrock
(B)sedimentary rock
(C )metamorphic rock
(D)basalt

4.The extend of land that gets irrigated from a water source is :
(A) duty '
(B) delta
(C )ayacut
( ....etc

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161/2014
Maximum : 100 marks
Time : 1 hour and 15 minutes

1.Which constituent in the earth gives plasticity to mould bricks?
(A)Lime
(B)Magnesia
(C ) Silica ’
(D) Alumina

2.The distance from the optical centre to the principle focus of a lens :
(A)Radius of curvature
(B)Focal length
(C )Focus
(D)None of these

3.The study of static electricity ;
(A)Electronics
(C )Electrostatic
(B)Electrostatic Field 
(D)Electron gravity

4.In optical systems, the lens of system of lenses closest to the observer� ....etc

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simple waste management working model for 5th grade for exhibition
....etc

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I want physics model for class 12th
it should b eassy and I can purches material eassly ....etc

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I want some suggestions for how i can make a good working model in physics (cbse) ....please give me some ideas.... ....etc

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1.The narrow strip of drawing board are joint together byjoints.
(A) Butt and lap joints(B)Lapped and splayed joints
(C ) Tongue and groove joint(D)Butt and dovetail jointsButt and dovetail joints

2.Which wood is used to made wooden T-Square? 
(A) Teak(B)Oak
(C ) Pine(D)Linoleum

3.The designation of standard recommended scalesof 1:10 and 1: 20 is :
(A) M2(B)M 4
(C ) M 5(D)M 3M3

4.The trimmed size of A2 drawing sheet in mm is :
(A) 297x 420(B)420x594
(C ) 594 x 841(D)-210 x 297 .

5.Which type of line is us ....etc

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I am looking for how to make a working model of transformer class 12th ?
pleae tell meabout how to make a working model of transformer class 12th
requirements ....etc

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Please help! We need a physics project(working model) of class 12, preferably related to the topic Current Electricity, any other topic related to class 12th syllabus would also do.
Thankyou. ....etc

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please help me to get some easy physics working model
....etc

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