Electricity
Define static electricity.
A stationary electric charge usually produced by friction
What is the Law of conservation of charge
A charge can be transferred, but not created or destroyed.
What is amperes?
DC current can easily be stepped up down using transformers.
False
What is the region or field that surrounds electrically charged particles?
Electric field
What law is "electric current is proportional to voltage and inversely proportional to resistance"?
Ohms law
What is resistance?
A force that counteracts the flow of current (measured in ohms)
The flow of electric current moves from negative to positive.
True
What is a conductor?
A material in which electrons can easily flow through.
What is charging by induction?
Transfer of charges by close proximity, but not touching.
What is the type of electric current that reverses its direction many times per second?
Alternating current
AC current is the most efficient way to transmit electric power over long distances.
True
What is a material in which electrons cannot easily flow through?
An insulator
What is a current?
the flow of electric charge in a circuit, measured in amperes
What is a direct current?
A Type of electrical current that flows in only 1 direction.
Current will increase if you increase the voltage or increase the resistance.
False
What is charging by contact?
Transfer of charges by direct contact (rubbing or touching)
What is a device used to detect the presence of an electric charge?
An electroscope
The electric potential difference between two points in a circuit
Voltage
DC current changes directions 60 times per second (60 cycle)
False