Electromagnetic Induction
Gbogbo ọrọ náà
Every power station, every bicycle dynamo and every wireless charger relies on the same principle: moving a conductor through a magnetic field (or changing the field through a conductor) generates a voltage. This is electromagnetic induction.
In this lesson you will learn how an induced voltage is produced, how generators use rotating magnets or coils to generate electricity, and what factors affect the size of the induced voltage.
Ebumnobi
- Know that a voltage is induced in a conductor or a coil when it moves through a magnetic field or when a magnetic field changes through it
- Describe the generation of electricity by the rotation of a magnet within a coil of wire and of a coil of wire within a magnetic field
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Electromagnetic Induction. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- A voltage is induced in a coil when: A) A stationary magnet is inside it B) The magnetic field through it changes C) It is connected to a battery D) It is heated Answer: B
- To increase the induced voltage, you could: A) Move the magnet more slowly B) Use fewer turns on the coil C) Use a stronger magnet D) Use a longer wire with no coil Answer: C
- A simple generator produces: A) D.C. only B) A.C. C) No current D) Static electricity Answer: B
- Electromagnetic induction converts: A) Electrical to kinetic energy B) Kinetic to electrical energy C) Heat to light D) Chemical to thermal energy Answer: B
- When a magnet is pulled out of a coil, compared to pushing it in: A) The current is the same direction B) The current reverses C) No current flows D) The current doubles Answer: B
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Electromagnetic Induction? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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