ELECTROSTATICS. ELECTROSCOPE. COULOMBS LAW ELECTRIC FIELD. CONDUCTORS AND INSULATORS. TENSION OF THE ELECTRIC FIELD Created by Omarov O. - презентация

1 ELECTROSTATICS. ELECTROSCOPE. COULOMBS LAW ELECTRIC FIELD. CONDUCTORS AND INSULATORS. TENSION OF THE ELECTRIC FIELD Created by Omarov O.

2 ELECTROSTATICS IS A BRANCH OF PHYSICS THAT DEALS WITH THE PHENOMENA AND PROPERTIES OF STATIONARY OR SLOW- MOVING ELECTRIC CHARGES WITH NO ACCELERATION. Created by Omarov O. ELECTROSTATICS Картинки из:

3 Created by Omarov O. WHAT IS THE ELECTRIC CHARGES? ELECTRIC CHARGE IS THE PHYSICAL PROPERTY OF MATTER THAT CAUSES IT TO EXPERIENCE A FORCE WHEN PLACED IN AN ELECTROMAGNETIC FIELD. THERE ARE TWO TYPES OF ELECTRIC CHARGES: POSITIVE AND NEGATIVE. DESCRIPTION: Q UNIT: 1C (COULOMB)

4 Created by Omarov O. PROTON – HAS A POSITIVE CHARGE AND IS LOCATED IN THE NUCLEUS. NEUTRON – HAS NO CHARGE (IS NEUTRAL) AND IS ALSO LOCATED IN THE NUCLEUS AS IT FILLS IN THE SPACES BETWEEN THE PROTONS. ELECTRON – HAS A NEGATIVE CHARGE AND IS LOCATED OUTSIDE OF THENUCLEUS IN AN ELECTRON CLOUD AROUND THE ATOM. ATOMIC STRUCTURE ATOMS ARE COMPOSED OF THREE TYPE OF PARTICLES: PROTONS, NEUTRONS, AND ELECTRON.

5 Created by Omarov O. PARTICLE CHARGES Картинка из: Electron: (-e): x C m: 9.11 x kg Proton: (-e): x C m: 1.67 x kg Neutron: (-e): no charged m: 1.67 x kg

6 AN ELECTROSCOPE IS AN EARLY SCIENTIFIC INSTRUMENT THAT IS USED TO DETECT THE PRESENCE AND MAGNITUDE OF ELECTRIC CHARGE ON A BODY Created by Omarov O. ELECTROSCOPE Картинки из: electroscope

7 ANALOGY BETWEEN GRAVITATIONAL AND ELECTRICAL FORCE Created by Omarov O. Newton Isaak Картинки из: duc_de_Brunswick_ag1.jpg Charles-Augustin de Coulomb

8 COULOMBS LAW Created by Omarov O. r r

9 r, m F,N FORCE – DISTANCE GRAPHS Created by Omarov O.

10 LAW OF CONSERVATION OF CHARGE CHARGES WITHIN A CLOSED SYSTEM MAY BE TRANSFERRED FROM ONE OBJECT TO ANOTHER, BUT CHARGE IS NEITHER CREATED NOR DESTROYED. THE ONLY POSSIBLE WAY THIS NET CHARGE CAN BE CHANGED IS IF SOME CHARGE IS REMOVED FROM THE SYSTEM OR ADDED TO IT.

11 Created by Omarov O. ELECTRIC FIELDS LINES THE ELECTRIC FIELD IS A COMPONENT OF THE ELECTROMAGNETIC FIELD. THE ELECTRIC FIELD STRENGTH IS THE AMOUNT OF ELECTROSTATIC FORCE OBSERVED BY A CHARGE PER UNIT CHARGE. THE FORMULA: q – charge (C); F – force (J); E – electric field strength(N|C) THE UNIT:

12 Created by Omarov O. ELECTRIC FIELDS LINES q q (test charge) Electric field strength here equal to: F (object charge)

13 Created by Omarov O. ELECTRIC FIELDS LINES q If you havent test charge but you want to find the electric field strength at this point you can use this formula: r (object charge)

14 Created by Omarov O. CONVERSION FORMULA

15 Created by Omarov O. ELECTRIC FIELDS THE ELECTRIC FIELD IS A COMPONENT OF THE ELECTROMAGNETIC FIELD. Картинка из: Electric field lines of positive chargesElectric field lines of negative charges

16 Created by Omarov O. ELECTRIC FIELDS LINES THE ELECTRIC FIELD IS A COMPONENT OF THE ELECTROMAGNETIC FIELD. Картинка из: Electric field lines of unlike chargesElectric field lines of like charges

17 Created by Omarov O. PRINCIPLE OF SUPERPOSITION OF THE FIELDS IF IN A GIVEN POINT OF THE SPACE, DIFFERENT CHARGED PARTICLES CREATE ELECTRIC FIELD, WHICH STRENGTHS ARE E1, E2, E3, AND SO ON. THUS THE RESULTING FIELD STRENGTH AT THIS POINT IS EQUAL TO THE SUM OF THE STRENGTHS OF THESE FIELDS:

18 TO BE CONTINUED… Created by Omarov O.