Presentation

Assalamu'alaikum Wr.Wb

Group:

ØImron Rosadi   (18.20.201.077)

ØAgung Wahyu Pambudi   (18.20.201.079)

ELECTROMAGNETIC

Danish Scientist Hans christian orsed discovered in 1820 that electric currents create magnetic fields. Scientist william sturgeon invented the electromagnet in 1824.His first electromagnet was a-shaped piece of iron that was wrapped with about 18 turns of bare copper wire (insulated wire didn't exist yet). The iron was vanished to insulate it from the windings. When a current was passed through the coil, the iron became magnetized and attracted other pieces of iron; when the current was stopped, it lost magnetization. Sturgeon displayed its power by showing that although it only weighed seven ounces (roughly 200 grams), it could lift nine pounds (roughly 4 kilos) when the current of a single-cell battery was applied. However, sturgeon's magnets were weak because the wire he used could only be wrapped in a single spaced out layer around the core, limiting the number of turns.

Beginning in 1830, us Scientist Joseph henry systematically improved and popularized the electromagnet. By using wire insulated by silk thread, and inspired by schweigger’s use of multiple turns of wire to make a galvanometer, he was creating powerful magnets with thousands of turns of wire, including one that could support 2,063 1b (936 kg). The first major use for electromagnets was in telegraph sounders.

TRANSLATION

Ilmuwan Denmark Hans Christian ørsted ditemukan di 1820 bahwa arus listrik membuat Medan magnet. ilmuwan William Sturgeon menemukan elektromagnet di 1824.pertama elektromagnet adalah berbentuk potongan besi yang dibungkus dengan sekitar 18 putaran telanjang kawat tembaga (kawat berisolasi tidak ada belum). besi itu dilennyapkan untuk melindungi itu dari gulungan. ketika arus melewati coil, besi menjadi magnet dan menarik lainnya potongan besi; ketika saat ini dihentikan, kehilangan magnetisasi. Sturgeon ditampilkan kekuatannya dengan menunjukkan bahwa Meskipun hanya ditimbang tujuh ons (kira-kira 200 gram), itu bisa mengangkat sembilan pound (kira-kira 4 kg) ketika arus satu-sel baterai diterapkan. Namun, Sturgeon dunia magnet yang lemah karena  kawat ia digunakan hanya bisa dibungkus dalam satu spasi lapisan sekitar inti, membatasi jumlah berubah. mulai tahun 1830, kami ilmuwan Joseph Henry sistematis membaik dan mempopulerkan elektromagnet. menggunakan kawat terisolasi dengan benang Sutera, dan terinspirasi oleh schweigger penggunaan beberapa putaran kawat untuk membuat galvanometer, ia mampu, menciptakan kuat magnet dengan ribuan berubah dari kawat, termasuk salah satu yang bisa mendukung 2,063 lb (936 kg). besar pertama gunakan untuk elektromagnet

5W+1H SENTENCE

1.What was invented by william sturgeon?

2.When did william sturgeon invent the electromagnetic?

3.Who invented the electromagnetic?

4.Why were sturgeon magnets weak?

5.Where was Hans Cristian come from ?

6.How did Joseph Henry improve and popularize the electromagnetic?

ANSWER

1.Electromagnetic was invented by William Sturgeon

2.Wiliam Sturgeon invented the Electromagnetic in 1824

3.William Sturgeon invented the electromagnetic

4.Sturgeon  magnets were weak, because the wire he used could be wrapped in a single spaced out

layer around the core

5.Hans Cristian was from Denmark

6.Joseph Henry improved and popularized the electromagnetic by using wire insulated silk thread and galvanometer as powerful magnets with thousands of turns of wire, including one that could support 2,063 1b (936 kg).

VERBAL AND NOMINAL SENTENCE

VERBAL

1. Danish Scientist Hans Christian Orsted discovered that electric current could create magnetic field in 1820
2. Scientist william sturgeon invented the electromagnet in 1824
3. The iron was vanished to insulate it from the windings
4. His first electromagnet was a-shaped piece of iron that was wrapped with about 18 turns of bare copper wire.
5. The iron became magnetized and attracted other pieces of iron. when a current was passed through the coil.

NOMINAL

-

ACTIVE AND PASSIVE SENTENCE 

ACTIVE SENTENCE

1. Danish Scientist Hans Christian Orsted discovered that electric current could create magnetic field in 1820
2. Scientist william sturgeon invented the electromagnet in 1824
3. The magnetic vanished the iron to insulate it from the windings
4. His first electromagnet was about 18 turns of bare copper wire wrap iron-shaped piece
5. The iron became magnetized and attracted other pieces of iron, when the coil pass through the current.

PASSIVE SENTENCE

1. Electric current that could create magnetic field was discovered by Danish scientist Hans Christian in 1820
2. The electromagnet was invented by scientist william in 1824
3. The iron was vanished to insulate it from the windings
4. His first electromagnet was a-shaped piece of iron that was wrapped with about 18 turns of bare copper wire.
5. When a current was passed through the coil, the iron became magnetized and attracted other pieces of iron.

TENSES PATTERN’S IDENTIFICATION

1. Danish Scientist Hans Christian Orsted (s),was(to be) discovered(verb) in 1820(adj of time) electric current that create magnetic field (Simple Past Tense)
2. The electromagnet was invented by scientist william(o) in 1824(adj of time) (Simple Past Tense)
3. To insulate the winding it from vanish the iron (Present Tense)
4. His first electromagnet was a-shaped piece of iron that was wrapped with about 18 turns of bare copper wire (Present Tense)
5. The iron became magnetized and attracted other pieces of iron, when the coil pass through the current. (Present Tense)

Wasalamualaikum Wr.Wb