Which of the listed options functions as an electrical insulator rather than a conductor?
Show answer Hide answer
Answer: D. All are conductors
Explanation
Graphite, aluminum, and gold are all electrical conductors, so none of the listed options function as an insulator.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Which medical imaging modality exposes the patient to some of the highest radiation dosages in diagnostic radiology?
Show answer Hide answer
Answer: A. CT-Scan
A computed tomography scan exposes patients to higher radiation dosages than standard diagnostic X ray imaging. This medical imaging modality combines multiple X ray measurements taken from various angles around the body...
Q2. Which wavelength or color of light experiences the least amount of deviation ________.
Show answer Hide answer
Answer: A. Red
Red light possesses the longest wavelength within the visible light spectrum of electromagnetic radiation frequencies. Longer wavelengths experience minimal refraction when passing through transparent mediums like glass...
Q3. Which element is commonly utilized as a neutron moderator inside nuclear reactors?
Show answer Hide answer
Answer: D. Heavy water
Heavy water contains deuterium atoms that slow down fast neutrons effectively inside nuclear reactors. This moderation process increases the probability of sustaining controlled nuclear fission chain reactions. Deuterium...
Q4. What specific gas is emitted as a byproduct by operating Photocopier machines?
Show answer Hide answer
Answer: A. Ozone
High-voltage corona wires in photocopiers and laser printers generate ozone gas as a byproduct during the printing process. Electrical discharge applied to ambient oxygen molecules inside the machine converts a portion o...
Q5. Which skeletal bone in the human body lacks direct bony attachment to any other bone?
Show answer Hide answer
Answer: B. Hyoid
The hyoid bone is unique in the human body because it lacks direct bony attachment to any other bone. This floating horseshoe shaped bone is suspended in the anterior midline of the neck by muscles and ligaments. Its iso...
Q6. Which bird is equipped with legs yet is biologically incapable of walking?
Show answer Hide answer
Answer: C. Hummingbirds
Hummingbirds possess extremely short leg bones and delicate feet that are strictly adapted for perching on branches. Their evolutionary adaptations prioritize aerial agility and hovering flight over terrestrial locomotio...