CME Electricity & Physics Principles in Electrology 2 — Questions and Answers
Question 1: During galvanic electrolysis, sodium hydroxide (lye) is produced at which electrode?
- Anode (positive pole)
- Cathode (negative pole) (Correct answer)
- Both poles equally
- The indifferent dispersive electrode
Correct answer: Cathode (negative pole)
Sodium hydroxide (NaOH) forms at the cathode (negative pole/probe) through electrolytic decomposition of tissue fluids, and this lye destroys the follicle.
Question 2: Electrical resistance in body tissue is measured in which unit?
- Volts (V)
- Ohms (Ω) (Correct answer)
- Amperes (A)
- Hertz (Hz)
Correct answer: Ohms (Ω)
Resistance to electrical current flow is measured in ohms (Ω), as established by Ohm's Law relating voltage, current, and resistance.
Question 3: In galvanic electrolysis, what polarity does the insertion probe carry?
- Positive (anode)
- Negative (cathode) (Correct answer)
- Neutral (no polarity)
- Alternating polarity
Correct answer: Negative (cathode)
The probe is the cathode (negative pole) in galvanic electrolysis, which drives the electrochemical reaction that produces sodium hydroxide at the follicle.
Question 4: When the electrologist increases the treatment intensity on a galvanic unit, what electrical parameter is being increased?
- Current frequency (Hz)
- Milliamperage (mA) (Correct answer)
- Voltage polarity
- Circuit resistance
Correct answer: Milliamperage (mA)
Increasing intensity on a galvanic unit increases the milliamperage (mA), which determines how much lye is produced and the speed of follicle destruction.
Question 5: Which type of current alternates direction of flow many times per second?
- Direct current (DC)
- Galvanic current
- Alternating current (AC) (Correct answer)
- Electrolytic current
Correct answer: Alternating current (AC)
Alternating current (AC) periodically reverses its direction of flow at a set frequency, which is the basis for thermolysis in electrolysis.
Question 6: The indifferent (dispersive) electrode used in galvanic electrolysis serves which primary function?
- Complete the electrical circuit through the client's body (Correct answer)
- Generate localized heat at the treatment site
- Neutralize the chemical effect of the probe
- Measure the resistance of the follicle
Correct answer: Complete the electrical circuit through the client's body
The indifferent electrode completes the electrical circuit, providing a return path for current that has passed through the client's tissue from the probe.
Question 7: One milliampere (mA) is equal to how many amperes?
- 1,000 amperes
- 100 amperes
- 0.1 amperes
- 0.001 amperes (Correct answer)
Correct answer: 0.001 amperes
One milliampere equals 0.001 amperes (one-thousandth of an ampere); electrology uses these very small currents for precise tissue destruction.
CME Electricity & Physics Principles in Electrology 2
During galvanic electrolysis, sodium hydroxide (lye) is produced at which electrode?