Capacitors and Inductors: Interactive Learning Quizzes for Engineering Science

Question 1

What is the unit of capacitance, which measures the ability of a capacitor to store electrical charge?

Accepted Answer

Farad

Answer

Henry

Answer

Ohm

Answer

Siemens

Question 2

Which factor listed below does NOT influence the capacitance of a capacitor?

Accepted Answer

Frequency of applied voltage

Answer

Surface area of conductive plates

Answer

Distance between conductive plates

Answer

Type of insulating material between plates

Question 3

Inductors are electrical components primarily used for which purpose?

Accepted Answer

Resisting changes in current flow

Answer

Storing electrical energy

Answer

Controlling voltage levels

Answer

Amplifying electrical signals

Question 4

What is the unit used to measure inductance, which quantifies an inductor's ability to oppose changes in current?

Accepted Answer

Henry

Answer

Farad

Answer

Ohm

Answer

Siemens

Question 5

Which material is commonly employed as the core of an inductor to enhance its magnetic properties?

Accepted Answer

Iron

Answer

Copper

Answer

Aluminium

Answer

Plastic

Question 6

Which formula accurately expresses the energy stored in an inductor with inductance 'L' and current 'I'?

Accepted Answer

½LI²

Answer

¼LI²

Answer

LI

Answer

2LI²

Question 7

Which of the following is NOT a common application of inductors in electrical circuits?

Accepted Answer

Regulating voltage to a fixed level

Answer

Storing energy as a magnetic field

Answer

Limiting current flow

Answer

Filtering out specific frequencies from a signal

Question 8

A capacitor primarily stores electrical energy in the form of:

Accepted Answer

Electric field

Answer

Magnetic field

Answer

Mechanical energy

Answer

Thermal energy

Question 9

The standard unit of capacitance is:

Accepted Answer

Farad

Answer

Henry

Answer

Ohm

Answer

Ampere

Question 10

An inductor primarily opposes changes in current flow by generating a:

Accepted Answer

Magnetic field

Answer

Electric field

Answer

Voltage

Answer

Resistance

Question 11

The energy stored in an inductor is directly proportional to:

Accepted Answer

Current squared

Answer

Voltage squared

Answer

Resistance squared

Answer

Capacitance squared

Question 12

In an electrical circuit, which element is primarily used to filter out high-frequency components from a signal?

Accepted Answer

Capacitor

Answer

Inductor

Answer

Resistor

Answer

Diode

Question 13

In an AC circuit, the impedance of a capacitor is:

Accepted Answer

Inversely proportional to frequency

Answer

Directly proportional to frequency

Answer

Constant

Answer

Zero

Question 14

When a capacitor and an inductor are connected in series, they form a circuit known as a:

Accepted Answer

Resonant circuit

Answer

Low-pass filter

Answer

High-pass filter

Answer

Band-stop filter

Question 15

The ability of a capacitor to store charge effectively is primarily due to its:

Accepted Answer

Insulating material

Answer

High capacitance

Answer

Low resistance

Answer

Large surface area

Question 16

In a series RLC circuit, at the resonant frequency, the inductive reactance (XL) and capacitive reactance (XC) satisfy the condition:

Accepted Answer

XL = XC

Answer

XL > XC

Answer

XL < XC

Answer

XL + XC = 0

Question 17

Which of the following represents the unit of capacitance?

Accepted Answer

Farad

Answer

Henry

Answer

Ohm

Answer

Tesla

Question 18

Which of the following applications does NOT utilize capacitors?

Accepted Answer

Current amplification

Answer

Energy storage

Answer

Filtering

Answer

Tuning circuits

Question 19

What is the SI unit of capacitance?

Accepted Answer

Farad (F)

Answer

Ohm (Ω)

Answer

Henry (H)

Answer

Volt (V)

Question 20

In which form does a capacitor store electrical energy?

Accepted Answer

Electric field

Answer

Magnetic field

Answer

Kinetic energy

Answer

Thermal energy

Question 21

Which of the following factors primarily influences the capacitance of a capacitor?

Accepted Answer

Plate surface area

Answer

Electrical resistance

Answer

Applied voltage

Answer

Electric current

Question 22

What type of energy is stored in an inductor?

Accepted Answer

Magnetic field

Answer

Thermal energy

Answer

Electric field

Answer

Kinetic energy

Question 23

What is the SI unit of inductance?

Accepted Answer

Henry (H)

Answer

Volt (V)

Answer

Farad (F)

Answer

Ohm (Ω)

Question 24

Which factor primarily affects the inductance of an inductor?

Accepted Answer

Number of turns in the coil

Answer

Electric current

Answer

Electrical resistance

Answer

Applied voltage

Question 25

In a series RLC circuit, which components determine the resonant frequency?

Accepted Answer

Inductance and capacitance

Answer

Resistance and inductance

Answer

Voltage and current

Answer

Resistance and capacitance