Which one of the following is an electrical insulator?
A)phosphorus
B)platinum
C)potassium
D)ruthenium

Question

Quizplus · Accepted Answer

Among the given options, phosphorus is an electrical insulator. This is because it is a non-metal and has high resistivity, which makes it difficult for electric current to pass through it. Platinum, potassium, and ruthenium are all metals and conduct electricity, and therefore cannot be considered insulators.

Which One of the Following Is an Electrical Insulator