TENTH
4 THE ELECTRIC SPARK
1.
Current
2.
Voltage (potential difference)
3.
Ohm's law
4.
Symbols
5.
Resistance
6.
Factor affecting resistance
7.
Resistance in series
8.
Resistance in parallel
9.
Heating effect of electric current Joule's law
10. Application
a.
Fuse
b.
Electric iron
11. Alternating
current (A.C.)
12. Main
supply 230V A.C.
13. Wiring
in house
14. How
to calculate electricity bill
5 ALL ABOUT ELECTRO MAGNETISM
1.
Discovery of magnet
2.
Basic of magnet
a.
Poles of magnet
b.
Magnetic field lines
c.
Properties of magnetic field lines
3.
Hans Christian OERSTED
4.
Magnetic field in a straight conductor
a.
Factors affecting magnetic field in straight conductor
5.
Magnetic field in curved or circular conductor
a.
Coil
b.
Solenoid
c.
Electromagnet
i.
Use of electromagnet
ii.
MRI machine
6.
Fleming’s left hand rule
7.
Parts of motors
8.
Electromagnetic induction
a.
Faradays law
9.
Direct current and alternating current
10. Generator
a.
Alternating generator and dc generator
6 WONDER OF LIGHT 1
- mirror
- types of mirror
- definition of mirror and basics
- ray diagrams basic
- different position of object in ray diagram
- formula of mirror
- application of mirror
- lens
- types of lens
- definition of lens and basics
- ray diagrams basic
- different position of object in ray diagram
- formula for lens
- Cartesian sign convention for mirror and lens
- application of lens
7 WONDER OF LIGHT 2
- reflection
- refraction
- difference between reflection and refraction
- expertiment to show refraction of light
- few refraction in real world
- mirage
- twinkling of stars
- why red signals for danger
- why sky appers blue
- why rainbow has seven colours
- what is scattering of light
- tribute to cv raman