☰ Contents · Technology

Electronics and electric lighting

Lessons 13–14 · 2 lessons · O‘. O. Tohirov, I. Karimov, M. M. Maksimova. Technology (Texnologiya), textbook for Grade 8 of general secondary schools. Ilm Ziyo, Tashkent, 2019
Answers are for parents and teachers.
1
Draw a resistor and a capacitor and label their parts.
2
How many watt-hours does a 60 W lamp use in 50 hours?
3
Identify the lamp types at home and write which is the most economical.
4
Explain why broken lamp remains must not just go into the rubbish.
5
Compare an LED and an incandescent lamp on 3 criteria.