Transformer

Question 1

Uses induction coils in their lighting system

Answer 1

Ganz Company

Question 2

Own design of transformer

Answer 2

Charles Francis Brush 1881

Question 3

Secondary generator

Answer 3

Lucien Gaulard and John Dixon Gibbs

Question 4

Use of closed cores

Answer 4

Otto Blathy

Question 5

Use of shunt connections

Answer 5

Karoly Zipermowsky

Question 6

Performed the experiments

Answer 6

Miksa Deri

Question 7

Siemens generator and Gaulard and Gibbs transformer

Answer 7

George Westinghouse

Question 8

Make transformer more practical

Answer 8

William Stanley

Question 9

High voltage

Answer 9

Skinny wire

Question 10

Low voltage

Answer 10

Wide wire

Question 11

Change low voltage to higher v in AC circuit

Answer 11

Transformer

Question 12

Parts of transformer

Answer 12

Primary coil
Secondary coil
Iron core

Question 13

Provides path for the magnetic lines of flux

Answer 13

Core

Question 14

Made of laminated layers of iron

Answer 14

Ferromagnetic core

Question 15

Helps reduce energy losses

Answer 15

Ferromagnetic core

Question 16

Receives energy from the AC source

Answer 16

Primary

Question 17

Receives energy from the primary winding and delivers it to the load

Answer 17

Secondary winding

Question 18

Protection from dirt

Answer 18

Enclosure

Question 19

Primary winding effects the other coil

Answer 19

Inductance

Question 20

Property of a circuit by which energy is stored in the form of an electromagnetic field

Answer 20

Inductance

Question 21

What is needed to change the voltage

Answer 21

Change the current in the primary

Question 22

Affects the induced voltage on the secondary coil

Answer 22

Current level

Question 23

Changing magnetic field means

Answer 23

Changing electromagnetic force

Question 24

By changing the current, ….

Answer 24

The desired voltage can be obtained

Question 25

Symbol of magnetic flux

Answer 25

Phi

Question 26

Amount of magnetic field passing through a given surface

Answer 26

magnetic flux

Question 27

Square core of ferromagnetic material

Answer 27

Closed-core transformer

Question 28

Transformer with only one winding

Answer 28

Autotransformer

Question 29

Refers to single coil acting on it

Answer 29

Auto prefix

Question 30

Single winding acts as

Answer 30

Both primary and secondary

Question 31

Used when small step up or step down is required

Answer 31

Autotransfomer

Question 32

Made with two closed core, more efficient

Answer 32

Shell type transformer

Question 33

Does not have ferromagnetic core to link primary and secondary

Answer 33

Air-core transformer

Question 34

Primary and secondary are wound on one cylindrical core

Answer 34

Open-core transformer

Question 35

Directly proportional to the turns ratio

Answer 35

Change in voltage

Question 36

Turns ratio is greater than 1

Answer 36

Step up transformer

Question 37

Number of turns in secondary is larger than the primary

Answer 37

Step up

Question 38

Turns ratio is less than 1

Answer 38

Step down

Question 39

Discover the property of induction

Answer 39

Joseph Henry and Michael Faraday (1880s)