Static Electricity
What is Static Electricty?
An Electric charge that can be held in one place.
What is energy?
The ability to do work.
What are the two type of batteries?
Dry cell and wet cell.
What does the resistor do?
It slows the flow of electrons in a circuit.
What is a series circuit?
a closed electrical pathway where electrons have only one path to follow
What is the unit of the Electric charge?
Coulumb is the unit of electric charge.
what do batteries convert chemical energy to?
Electric energy.
What are the units for current?
Amperes (A) or Amps.
Convert these
1. 13mA to A.
2. 50 kiloΩ to Ω.
1. 0.013A
2. 50000Ω
One disadvantages of Series Circuits.
If one light goes out rest of them goes out too.
Lightning rods on top of building allows static charges from lightning to flow into earth's surface. What is that process called?
The process is called grounding.
What is an Electric load?
any device that transforms electrical
energy into other forms of energy
What is an electrolyte?
a substance that conducts an
electric current and contains a weak acid.
All three formulas of Ohm's law?
R=V/I
V=IR
I=V/R
What is a parallel circuit?
have multiple pathways for current to flow
Why are neutral objects attracted to charged objects.
because neutral objects are charged by contact forces.
What is Electric Potential Difference?
It's the amount of potential energy per
1 Coulomb.
what component does a circuit need to work?
source
conductor
load
switch
What happens when energy is lost in a resistor?
It means that electrical energy has been transformed into other forms of energy.
How do we measure volts in series circuit?
The sum of the volts across each load adds up to the voltage of the battery.
State all three laws of Static Electricty?
like charges repel
opposite charges attract
charged objects can attract neutral objects.
Explain?
Potential Energy and Potential Difference
Potential Energy = the energy stored in an object
Potential Difference= the difference in electric
potential between two points
What is a Conventional Current?
conventional current moves from positive to
negative, the opposite of electron flow.
The current through a load in a circuit is 1.5 A.
If the potential difference across the load is 12 V,
what is the resistance of the load?
(Answer)
2. R= V/I
= (12 V)/(1.5 A)
= 8.0 𝝮
The resistance of the load is 8.0 𝝮.
What happens to the brightness of a bulb as you add more loads to a series circuit?
The brightness of each bulb decreases.