
PRETEST PWM
Authored by Ricy Firnando
Computers
University
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apa kepanjangan dari PWM dalam teknik elektronika?
Answer explanation
PWM adalah teknik modulasi lebar pulsa untuk mengontrol daya.
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apa fungsi utama PWM dalam kendali motor DC?
Answer explanation
PWM digunakan untuk mengontrol kecepatan motor DC dengan mengubah siklus kerja.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apa yang terjadi jika duty cycle PWM ditingkatkan?
Answer explanation
Duty cycle yang lebih tinggi meningkatkan rata-rata daya yang diterima motor.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dalam konteks LED, bagaimana PWM mempengaruhi tingkat kecerahan?
Answer explanation
LED akan tampak lebih terang saat duty cycle lebih besar karena lebih banyak waktu aktif.
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apa unit yang digunakan untuk mengukur frekuensi PWM?
Answer explanation
Frekuensi PWM diukur dalam Hertz (Hz), menunjukkan berapa kali siklus diulang per detik.
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apa yang menjadi faktor utama dalam menentukan duty cycle PWM?
Answer explanation
Duty cycle dihitung berdasarkan rasio antara waktu sinyal ON dan total periode.
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apa perbedaan utama antara PWM dan metode pengaturan tegangan linier?
Answer explanation
PWM lebih efisien karena mengurangi disipasi daya dalam bentuk panas.
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