Is nickel a conductor or insulator? (yes or no)Is celluloid a conductor or insulator? (yes or no)Is brass a conductor or insulator? (yes or no)Is lead a conductor or insulator? (yes or no)Is water a conductor or insulator? (yes or no)
The Correct Answer and Explanation is:
Nickel: Yes, it is a conductor.
Explanation: Nickel is a metal and, like most metals, it conducts electricity due to the presence of free electrons that can move through the metal lattice. Metals are typically good conductors of both heat and electricity, and nickel is no exception.
Celluloid: No, it is an insulator.
Explanation: Celluloid is a type of plastic that is made from cellulose, and plastics are generally insulators. This means they do not allow the easy flow of electrical current. Celluloid is used for a variety of applications, such as photographic film, due to its insulating properties and ease of molding.
Brass: Yes, it is a conductor.
Explanation: Brass is an alloy made primarily of copper and zinc. Copper, which makes up a significant portion of brass, is a very good conductor of electricity. While brass is not as conductive as pure copper, it is still a conductor due to the high copper content.
Lead: Yes, it is a conductor.
Explanation: Lead is a metal and therefore can conduct electricity. However, its conductivity is lower than that of many other metals like copper or aluminum. Lead is often used in applications where its conductivity is not as important, such as in shielding from radiation.
Water: Yes, it is a conductor (depending on impurities).
Explanation: Pure water is actually a poor conductor of electricity because it lacks free ions to carry the current. However, in real-world conditions, water often contains dissolved salts, minerals, or other impurities that allow it to conduct electricity. So, in most cases, water acts as a conductor due to the presence of these impurities.
