The _______________ light bulb is not a good choice as it consumes the most energy.
3.
Florescent light is a tube that uses _____________ to excite mercury vapour.
4.
Appliances that are plugged into the smart plug can be ____________ remotely from different locations with the app on the smart phone.
5.
When the LED terminals are __________ to power supply source in the correct polarity, it will light up.
7.
Incandescent lamp consists of a glass enclosure containing a ___________ filament.
8.
A smart speaker is a type of speaker and voice command device with an integrated _____________ assistant that offers interactive actions and hands-free activation.
10.
Incandescent lamp emits light by _____________ element present in the bulb.
12.
Fluorescent light is a ___________ discharged lamp.
13.
The curtain, blind or shade can be installed with an electric ____________ to automate the opening and closing instead of manually by hands.
14.
In LED, when the forward ___________ is applied to the P-N junction, electrons are given enough energy to jump across the P-N junction.
Down:
1.
______________ fans are also known as exhaust fans for commercial bathroom and public toilet.
5.
The 2 terminals of the LED are anode and __________.
6.
Tungsten is remarkable for its robustness and has the highest _____________ point.
9.
LED is a semiconductor electronic component and is basically a ___________ emitting device.
11.
The 2 terminals of the LED are __________ and cathode.