proportional to the product of the charges and inversely proportional to the square of their distance apart. The forces are attractive for unlike charges and repulsive for like charges. [pic]. e.g. (b) Find the electrostatic force between charges of +2.0 C and +5.0 C separated by a distance of 75 m in a vacuum. q1 = 2.0 C q2 = 5.0 C r = 75 m [pic] [pic] 2 Two charges of +8.0 mC and -6.0 mC attract each other with a force of 3
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STATEMENT According to Coulomb’s law: The electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of charges. The electrostatic force of attraction or repulsion between two point charges is inversely proportional to the square of distance between them. MATHEMATICAL REPRESENTATION OF COULOMB’S LAW Consider two point charges q1 and q2 placed at a distance of r from each other. Let the electrostatic force between them is F. According
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Electric Field and the Movement of Charge Perhaps one of the most useful yet taken-for-granted accomplishments of the recent centuries is the development of electric circuits. The flow of charge through wires allows us to cook our food‚ light our homes‚ air-condition our work and living space‚ entertain us with movies and music and even allows us to drive to work or school safely. In this unit of The Physics Classroom‚ we will explore the reasons for why charge flows through wires of electric circuits
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Capacitors and electrostatics PHY 114 Abstract: The purpose of this experiment was to measure the electrostatic force between two objects as a function of their signs and electrical charges. This was done using many equipment’s such as a glass and rubber rod. In addition‚ investigate how capacitors store energy electrostatically in an electric field‚ share charges and discharge. This was done by using equipment’s like voltage follower‚ DVM‚ powered breadboard unit and a selection of capacitors
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Franklin bell experiment Report Introduction After much thought as to what experiment to do‚ I decided to do an electrostatic experiment using the Franklin bell. I had to try and find different energy sources that would work for me. Any electronic instrument would give off enough electricity‚ but I eventually settled on using a electric bug zapper because it was easy to set up the crocodile clips with it. Afterwards I tried the same experiment with a television set‚ using tinfoil which gave static
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lectrostatics (Q.1) What is the direction of electric field intensity at a point on equatorial line of dipole? ( 1 mark ) (Q.2) Define electric dipole moment? ( 1 mark ) (Q.3) Define electric field intensity? ( 1 mark ) (Q.4) When does a dipole experiences maximum torque placed in uniform electric field? ( 1 mark ) (Q.5) What happens when an electric dipole is placed in non uniform electric field? ( 1 mark ) (Q.6) What is the value of electric field intensity inside a charged conductor? Why
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o 4m 3µC Calculate the magnitude and direction of the 3m force on the +3µC . •2µC 9. How far apart should two protons be placed if the electrostatic force by one on the other is equal to the weight of an electron? 10. Two charges +0.5µC and -0.5µC are 10-3micron apart. Calculate the electric field intensity at a point 20 cm away from their mid point on the equatorial line. 11. An electric
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Static Electricity Everything is made up of tiny particles called atoms. The atoms are made up of even smaller parts called protons‚ electrons and neutrons. Protons have a positive charge (+)‚ electrons have a negative charge (-) and neutrons have no charge at all‚ they are neutral. Atoms normally have the same amount of electrons and protons‚ making them neutral and having no charge. When rubbing things together‚ electrons can move from one atom to another‚ resulting in some atoms having extra
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One World Electrostatic Precipitators Electrostatic precipitators are machines designed to reduce pollution in industrial applications. Typically fitted to the stacks of factories and power stations‚ electrostatic precipitators are designed to filter out dust particles from exhaust gases produced by industrial work. 99.9% of the dust particulates is captured by the precipitator‚ reducing the amount of dirty air passing into the atmosphere. (“Introduction to Precipitators”‚ 2oo7) Air pollution
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Hardware Tools A. Electrostatic Discharge(ESD) 1. Antistatic Wrist Strap-An antistatic wrist strap‚ ESD wrist strap‚ or ground bracelet is an antistatic device used to safely ground a person working on very sensitive electronic equipment‚ to prevent the buildup ofstatic electricity on their body‚ which can result in electrostatic discharge (ESD). It is used in the electronics industry by workers working on electronic devices which can be damaged by ESD‚ and also sometimes by people working around
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