Electrical Engineering and Human Health Facts

Electrical Engineering

This set of questions explores factual connections between electrical engineering principles and their impact on the human body and health.

biomedical engineering electrical safety medical devices human physiology

10 Questions Medium Ages 16+ Aug 18, 2026

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About this Study Set

This study set covers Electrical Engineering through 10 practice questions. This set of questions explores factual connections between electrical engineering principles and their impact on the human body and health. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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1 What is the approximate electrical resistance of intact human skin under dry conditions?

A 1,000 ohms
B 10,000 ohms
C 100,000 ohms
D 1,000,000 ohms

2 Which physiological effect is primarily responsible for the disruptive impact of electric current on the heart's rhythm?

A Thermal burns
B Muscle tetanus
C Electrolysis of blood
D Ventricular fibrillation

3 What is the standard unit of electrical current used to measure the flow of charge that can cause harm to the human body?

A Volt (V)
B Ohm (Ω)
C Watt (W)
D Ampere (A)

4 In medical imaging, what electrical engineering principle is fundamental to the operation of an MRI scanner?

A Capacitive coupling
B Electromagnetic induction
C Piezoelectric effect
D Hall effect

5 What is the typical minimum current, in milliamperes (mA), that can cause an involuntary muscle contraction (e.g., inability to let go) in humans?

A 0.1 mA
B 1 mA
C 5-10 mA
D 50 mA

6 The electrical activity of the brain is measured and recorded using an Electroencephalogram (EEG). What type of electrodes are typically used to pick up these faint electrical signals?

A Inductive sensors
B Capacitive electrodes
C Conductive gel-based electrodes
D Resistive probes

7 What electrical engineering concept is crucial for ensuring the safety of pacemakers and other implanted medical devices by preventing interference?

A Power factor correction
B Electromagnetic compatibility (EMC)
C Harmonic distortion mitigation
D Signal-to-noise ratio optimization

8 The human body, due to its water content, can be considered a conductor. At very high frequencies, what phenomenon can cause electrical current to flow more on the surface of a conductor, including the body?

A Skin effect
B Proximity effect
C Eddy currents
D Dielectric breakdown

9 When an electrical current passes through the human body, it generates heat. This phenomenon is a direct application of which electrical law?

A Ohm's Law
B Coulomb's Law
C Joule's Law (I²R heating)
D Ampère's Law

10 What electrical engineering parameter is a primary factor in determining the severity of an electric shock, alongside resistance and duration?

A Frequency
B Inductance
C Capacitance
D Power

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