Session Topics on Capacitors

Insulators and conductors are types of materials. Which of the following statements is true about them?

• Insulators allow electricity to flow through them easily, while conductors do not.

• Conductors allow electricity to flow through them easily, while insulators do not.

• Both insulators and conductors allow electricity to flow through them easily.

• Neither insulators nor conductors allow electricity to flow through them easily.

A capacitor is a device that:

• stores electrical energy in an electric field

• converts electrical energy into mechanical energy

• amplifies electrical signals

• measures electrical resistance

The basic construction of a capacitor is:

• two conductive plates separated by an insulator

• a single conductive plate

• two conductive plates touching each other

• a conductive plate and a resistor

What are the different types of capacitors?

• Ceramic, Electrolytic, Tantalum, Film

• Resistor, Inductor, Transformer, Diode

• NPN, PNP, MOSFET, JFET

• AC, DC, RF, Microwave

The terminology associated with capacitors is known as:

• Capacitance

• Resistance

• Inductance

• Conductance

What are the safety aspects relating to capacitors?

• Capacitors can store charge and may cause electric shock if not discharged properly.

• Capacitors are always safe to handle without any precautions.

• Capacitors do not store any charge and are safe.

• Capacitors can only be used in low voltage applications.

What is a conductor?

• A material that allows the flow of current. Free electrons or ions will move when a voltage is applied. Very low resistance.

• A material that completely blocks the flow of current.

• A device used to store electrical energy.

• A material that emits light when heated.

What is an insulator?

• A material that does not allow the flow of current. There are NO free electrons. Very high resistance.

• A material that allows the flow of current easily. There are many free electrons. Low resistance.

• A device that converts electrical energy into mechanical energy.

• A material that partially allows the flow of current. Moderate resistance.

Which of the following is a conductor?

• Wood

• Copper

• Rubber

• Glass

Which of the following is an insulator?

• Silver

• Aluminium

• Water

• Wood