CPE 032 (Inductance)

Question 1

Inductor, also called a?

Answer 1

choke

Question 2

is another passive type electrical component designed to take advantage of this relationship by producing a much stronger magnetic field than one that would be produced by a simple coil.

Answer 2

Inductor

Question 3

Symbol of inductance is?

Answer 3

L

Question 4

Unit of inductance is?

Answer 4

Henry

Question 5

the property of an electric circuit by which an electromotive force is induced in it as the result of changing magnetic flux.

Answer 5

Inductance

Question 6

temporary magnet production due to flow of electric current.

Answer 6

Electromagnet

Question 7

is the production of voltage across an electric conductor situated in a changing magnetic field or a conductor moving through a stationary magnetic field.

Answer 7

Electromagnetic induction

Question 8

Wires coiled in multiple turns generate a greater magnetic field than linear wires do. Such a coil is called an?

Answer 8

inductor

Question 9

is usually constructed as a coil of conducting material, typically copper wire, wrapped around a core either of air or ferrous material.

Answer 9

Inductor

Question 10

A magnetic field is created when the ____ runs through an inductor

Answer 10

current

Question 11

Factors Affecting Inductance.

Answer 11

Core: (material), and (shape and size)
Wire: (number of turns), and (shape, size and arrangement)

Question 12

Inductance Formula

Answer 12

L = NΦ / I

Question 13

Engineers use the inductance formula to design transformers that efficiently transfer electrical energy between circuits through electromagnetic induction.

Answer 13

Designing Transformers

Question 14

The formula helps in creating inductors which regulate current and filter noise in electrical systems.

Answer 14

Building Inductors

Question 15

It allows for the design of motors and generators by predicting how magnetic fields interact with electrical currents.

Answer 15

Developing Electrical Motors and Generators

Question 16

Technicians apply the formula to design tuned circuits in radios and TVs to select desired frequencies.

Answer 16

Creating Tuned Circuits

Question 17

It assists in developing systems like magnetic energy storage, optimizing how energy is stored and retrieved.

Answer 17

Improving Energy Storage Systems

Question 18

The formula is instrumental in designing circuits that prevent surge currents, protecting sensitive electronic components.

Answer 18

Suppressing Surge Currents

Question 19

Inductors connected in series

Answer 19

Et = e1 + e2
Lt = L1 + L2 + Ln
I = IL1 = IL2

Question 20

Inductors connected in parallel

Answer 20

Et = e1 + e2
It = I1 + I2

(1/Lt) = (1/L1) + (1/L2) + (1/Ln)

Question 21

Inductors connected in series-parallel

Answer 21

It = I1 + I2
Lt = L1 + L2 // L3
= L1 + (L2 x L3 / L2 + L3)

Question 22

An is a component in an electrical circuit which stores energy in its magnetic field.

Answer 22

inductor

Question 23

Inductors don’t like ____, they want to remain _____

Answer 23

Inductors don’t like change, they want to remain the same

Question 24

When current ____, they try to stop it with an opposing force

Answer 24

When current increases, they try to stop it with an opposing force

Question 25

When current ____, they try to stop it by pushing electrons out, to try and keep it the same as it was

Answer 25

When current decreases, they try to stop it by pushing electrons out, to try and keep it the same as it was