Transformer

Transformer

Apa itu transformer? ^{What is a transformer?}

• Alat untuk menurunkan atau meningkatkan voltan arus ulang alik

• Device that can increase or decrease the voltage of alternating current

Multiple Choice

Apakah kegunaan transformer?

What is the usage of transformer?

• Meningkatkan voltan

  Incease voltage

• Menurunkan voltan

  Decrease voltage

• Meningkatkan atau menurunkan voltan

  Increase or decrease voltage

Struktur transfomer

Structure of a transformer

Multiple Choice

Arus elektrik masuk dari...

Electric current enter from...

• Gegelung primer

  Primary coil

• Gegelung sekunder

  Secondary coil

Jenis transformer

^{Type of transformer}

• A = Injak naik / Step up

• B = Injak turun / Step down

Injak naik

^Step-up

• Meningkatkan voltan / increase voltage

• Lilitan di gegelung sekunder > lilitan di gegelung primer

• No. of turns in secondary coil > no. of turns in primary coil

• Voltan sekunder > voltan primer

• Secondary voltage > primary voltage

Injak turun

^Step-down

• Menurunkan voltan / decrease voltage

• Lilitan di gegelung primer > lilitan di gegelung sekunder

• No. of turns in primary coil > no. of turns in secondary coil

• Voltan primer > voltan sekunder

• Primary voltage > secondary voltage

Multiple Choice

Transformer yang mempunyai lilitan lebih di gegelung sekunder dipanggil:

Transformer with more number of turns on secondary coil is called:

• Injak naik

  Step-up

• Injak turun

  Step-down

Multiple Choice

Transformer yang boleh menurunkan voltan dipanggil:

Transformer that decreases the voltage is called:

• Injak naik

  Step-up

• Injak turun

  Step-down

Multiple Choice

Sumber tenaga elektrik yang dibekalkan ke rumah kita adalah 240 V. Jika anda ingin mengecas telefon bimbit anda, transformer jenis apa yang diperlukan?

Electrical energy source provided to our home is 240 V. If you want to charge your phone, which transformer will be used?

• Tidak perlu transformer

  No need transformer

• Injak naik

  Step-up

• Powerbank kan ada

  Got powerbank already

• Injak turun

  Step-down

Pengiraan

Calculation

• V_s/V_p = N_s/N_p

• V_s = ? = ( N_s/N_p ) x V_p

• V_p = 240V_, N_p = 80_, N_s = 20

• V_s = 60V

Multiple Choice

Kira N_p

Calculate N_p

• 480

• 530

• 452

• 503

Terima kasih

Thank you