Electricity Flashcards
Name a natural magnet:
Lodestone, Magnetite
Two magnetic poles will repel each other if:
Both are south poles
Static electricity means:
Electricity at rest
A measurement of resistance is called an:
ohm
A flow of electrons constitutes:
Electric currentA
A flow of electrons in the same direction is called:
Direct current
A circuit that has a break or gap in it so no current can flow is a/an:
Open circuit
A unit of measurement of quantity of electricity is termed:
Coulomb (count>coulomb)
Alternating current:
Flows in interrupted pulses
A unit of electrical pressure is called:
volt
A milliampere is:
1/1000 of an ampere
Whenever an electrical current is diverted from its prescribed course so that a very great current flows, it is called:
Short circuit
The manner in which electricity is used for a therapeutic effect is:
A modality
A direct current generator produces electricity is:
Chemical means
A transformer does what?
Steps voltage up or down
Alternating current can be converted to direct current by a:
Rectifier
Galvanic current is what kind of current?
Direct
Electrons always flow from:
Negative to positive
The smallest unit of matter in which a substance can be divided, without losing its basic properties is:
A molecule
Rubber, plastic, glass, and dry wood are examples of what kind of materials:
Insulators
Cataphoresis is the use of a positive pole, to produce what in the skin?
Acid
When electrical current is an actual operation, it is known as:
A complete circuit
A conductor of electricity does what?
Carries current, transmits current, conveys current
In order to make a current flow, you must have what?
Voltage
A step-up transformer is a device used on Alternating current to:
Increase voltage, and decrease amperage
