CME Electricity & Physics Principles in Electrology 1 — Questions and Answers
Question 1: What type of electrical current is used in galvanic electrolysis?
- Alternating current (AC)
- Direct current (DC) (Correct answer)
- Radio frequency current
- Pulsed sinusoidal current
Correct answer: Direct current (DC)
Galvanic electrolysis uses direct current (DC), which flows in one direction to produce a chemical reaction that destroys the hair follicle.
Question 2: Which unit of measurement is used to quantify the intensity of current delivered during electrolysis treatment?
- Volt (V)
- Ohm (Ω)
- Milliampere (mA) (Correct answer)
- Watt (W)
Correct answer: Milliampere (mA)
Electrical current in electrolysis is measured in milliamperes (mA) because the currents involved are very small fractions of an ampere.
Question 3: In thermolysis (shortwave diathermy), what mechanism destroys the hair follicle?
- Chemical reaction producing sodium hydroxide
- Heat generated by high-frequency alternating current (Correct answer)
- Mechanical disruption of the dermal papilla
- Electrical coagulation of the blood supply
Correct answer: Heat generated by high-frequency alternating current
Thermolysis uses high-frequency alternating current to cause water molecules in the follicle to vibrate and generate heat, thermally destroying the follicle.
Question 4: Ohm's Law states that voltage equals current multiplied by:
- Power
- Frequency
- Resistance (Correct answer)
- Capacitance
Correct answer: Resistance
Ohm's Law is expressed as V = I × R, meaning voltage equals current multiplied by resistance, describing the relationship between these three electrical quantities.
Question 5: The blend method in electrolysis simultaneously combines which two modalities?
- Galvanic current and thermolysis (Correct answer)
- Ultrasound and radio frequency
- Two forms of thermolysis at different frequencies
- AC galvanic and DC thermolysis
Correct answer: Galvanic current and thermolysis
The blend method uses both galvanic (DC) and thermolysis (high-frequency AC) currents simultaneously, enhancing lye production and speeding follicle destruction.
Question 6: Which electrical property describes the 'pressure' or force that drives current through a circuit?
- Resistance, measured in ohms
- Current, measured in amperes
- Voltage, measured in volts (Correct answer)
- Power, measured in watts
Correct answer: Voltage, measured in volts
Voltage (measured in volts) is the electrical potential difference that acts as the driving force or 'pressure' pushing current through a circuit.
Question 7: The operating frequency used in thermolysis electrolysis equipment is typically in the range of:
- 1–10 Hz
- 100–1,000 Hz
- 13.56 MHz (Correct answer)
- 2.4 GHz
Correct answer: 13.56 MHz
Thermolysis devices operate at radio frequencies, typically around 13.56 MHz, which is an ISM (Industrial, Scientific, and Medical) band frequency approved for medical devices.
