Conductivity | MCQs

Explanation

Acetic acid (CH3COOH) is a weak acid that only partially dissociates in water, forming a weak electrolyte solution.

It does not fully dissociate into ions like strong acids (like HCl) or strong bases (like KOH).

Explanation

Resistance is the property of a material or object that opposes the flow of electric charge (current) through it.

It is measured in ohms (Ω) and depends on the material, length, and cross-sectional area of the object.

Explanation

Resistivity is a property of the material itself, and is not a factor that affects the resistance of a specific conductor.

The resistance of a conductor depends on its length, cross-sectional area, and the material's resistivity.

Explanation

• Conductors are materials that allow electricity to flow through them, such as copper, aluminum, and gold.
• They have a high concentration of free electrons, which are able to move freely within the material, carrying electrical charge with them.
• Materials that do not allow electricity to pass through them are called insulators.
  

Explanation

• A closed circuit provides a complete path for the current to flow through.
• It allowing electricity to flow from the power source, through the wire, and back to the power source.