Electricity Flashcards
Apparatus that changes alternating current to direct current, mobile phone charges convert ac current to dc current needed to recharge batteries
Rectifier
Unit that measures the pressure or force that pushes the flow of electrons forward through a conductor
Volt
Unit that measures the amount of an electric current ( number of electrons flowing through a conductor)
Ampere
One-thousandth of an ampere
Milliampere
Unit that measures the resistance of an electric current
Ohm
Measurement of how much electric energy is being used in 1 second
Watt
1,000 watts
Kilowatt
Prevents excessive current from passing through a circuit
Fuse
Switch that automatically interrupts or shuts off an electric circuit at the first indication of an overload
Circuit breaker
Ground connection completes the circuit and carries the current safely away to the ground
Grounding
Use of electrical devices to treat the skin and for therapeutic benefits
Electrotherapy
Currents used in electrical facial and scalp treatments
Modalities
Applicator for directing the electric current from the device to the clients skin
Electrode or probe
One negative one positive– to conduct the flow of electricity through the body
2 electrodes, each modality requires 2 except for tesla high frequency
Indicates the negative or positive pole of an electric current
Polarity
Positive electrode
Anode, usually red and I’d marked with a P or plus sign
Negative electrode black and is usually marked with an N or a minus sign
Cathode
Constant and direct current. It has a positive and negative pole and produces chemical changes when it passes through the tissues and fluids of the body
Galvanic current