menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
If a 100w bulb is used for 20 seconds how much energy does it use?
Ask a Question
Questions
Unanswered
Tags
Ask a Question
If a 100w bulb is used for 20 seconds how much energy does it use?
asked
May 23, 2022
207k
views
3
votes
If a 100w bulb is used for 20 seconds how much energy does it use?
Physics
high-school
Immanuel Kirubaharan
asked
by
Immanuel Kirubaharan
8.6k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
7
votes
Just multiply the watts by the hours . So 100 x 20 = 2000 Wh, or 2 kWh.
Gaborsch
answered
May 29, 2022
by
Gaborsch
8.0k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Jun 28, 2024
229k
views
An electric bulb is labeled 240v,100w how much current is taken by the bulb?
Thane Plummer
asked
Jun 28, 2024
by
Thane Plummer
8.4k
points
Mathematics
high-school
1
answer
2
votes
229k
views
asked
Aug 5, 2024
162k
views
Two light bulbs, one rated 50 W and a second rated 100 W are both supposed to be connected to a 110 V source of emf. Which of the following is true? a. The 50W bulb has twice the resistance as the 100W
Pesche
asked
Aug 5, 2024
by
Pesche
8.4k
points
Physics
high-school
1
answer
2
votes
162k
views
asked
Jan 15, 2024
202k
views
If 5% of the energy supplied to a bulb is radiated as visible light, the number of visible quanta emitted per second by a 100W bullb, assuming the wavelength of visible light to be 5.6×10⁻⁵ cm, is___ o
Hnprashanth
asked
Jan 15, 2024
by
Hnprashanth
8.8k
points
Physics
high-school
1
answer
1
vote
202k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
Physical properties of minerals graphic organizer
A snowball is launched horizontally from the top of a building at v = 16.9 m/s. If it lands d = 44 meters from the bottom, how high (in m) was the building?
What type of rock is the Haystack rock (igneous, Metamorphic, or Sedimentary)
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org