Electrolysis and Circuit Fundamentals Quiz

Ohm's Law is represented by which of the following equations?

In a series circuit, how does the current behave?

• It varies at different points in the circuit.

• It remains the same throughout the circuit.

• It is zero.

• It doubles at each component.

What is the main advantage of a parallel circuit over a series circuit?

• It is cheaper to build.

• It allows components to be controlled individually.

• It uses less power.

• It has a higher resistance.

What is the process of electrolysis?

• The mixing of two liquids.

• The decomposition of a compound using electricity.

• The heating of a metal.

• The cooling of a gas.

Which of the following is used as the electrolyte in the extraction of aluminium?

• Sodium chloride

• Copper sulphate

• Bauxite

• Cryolite

What is the unit of electrical resistance?

• Ampere

• Volt

• Ohm

• Watt

In a parallel circuit, how does the voltage across each component compare?

• It is different for each component.

• It is the same across all components.

• It is zero.

• It doubles for each component.

What is the role of the positive electrode in electrolysis?

• It is the positive electrode where oxidation occurs.

• It is the negative electrode where reduction occurs.

• It is the positive electrode where reduction occurs.

• It is the negative electrode where oxidation occurs.

Which of the following materials is commonly used as a conductor in circuits?

• Rubber

• Glass

• Copper

• Wood

What happens to the total resistance in a series circuit when more resistors are added?

• It decreases.

• It remains the same.

• It increases.

• It becomes zero.