1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aloiza [94]
3 years ago
15

What is the function of an electromagnet in an electric doorbell?

Biology
2 answers:
Klio2033 [76]3 years ago
6 0

Answer:

The correct answer is option - its attracts a metal striker which then hits the bell.

Explanation:

The mechanism of the doorbell is very simple whenever someone presses the doorbell switch it completes the electric circuit that allows the electric current to flow through the electromagnet present in the doorbell.

The current that flows through the electromagnet is then attracts the striker of the bell that hits the bell and the bell makes the sound. Doorbells are the device that works on low voltage.

Thus, the correct answer is - it attracts a metal striker which then hits the bell.

VladimirAG [237]3 years ago
4 0

The correct answer is:

D. It attracts a metal striker, which then hits the bell.

The function of an electromagnet in an electric doorbell is it attracts a metal striker, which then hits the bell.

|Huntrw6|

You might be interested in
What are the biological structures
vesna_86 [32]

Answer:Biological structures are able to adapt their growth to external mechanical stimuli and impacts. For example, when plants are under external loads, such as wind force and self-weight, the overloaded zones are reinforced by local growth acceleration and the unloaded zones stop growing or even shrink. Such phenomena are recorded in the annual rings of trees. Through his observation of the stems of spruce, K. Metzger, a German forester and author, realized that the final goal of the adaptive growth exhibited by biological structures over time is to achieve uniform stress distribution within them. He published his discovery in 1893.12 A team of scientists at Karlsruhe Research Centre adopted Metzger's observations and developed them to one single design rule: the axiom of uniform stress. The methods derived from this rule are simple and brutally successful like nature itself. An excellent account of the uniform-stress axiom and the optimization methods derived from it is given by Claus Mattheck in his book ‘Design in Nature’.13 The present study utilizes one of these methods, stress-induced material transformation (SMT), to optimize the cavity shape of dental restorations.

Explanation:

6 0
2 years ago
Read 2 more answers
Directions: Select each correct answer. More than one answer may be correct.
nordsb [41]
When plants perform photosynthesis and when plants or animals perform aerobic cellular respiration
5 0
3 years ago
Based on cell structure, all life forms can be placed into two categories called
djyliett [7]
Prokaryotic - cells that don’t contain a nucleus, for example bacteria cells

Eukaryotic - cells that contain a nucleus, for example plant and animal cells
5 0
2 years ago
Clout gang I neeeed helpppppppppp
Leona [35]
<span>
What do you think that a very wide space between two contour lines means?


</span><span> B.MOUNTAIN TOP</span>
7 0
3 years ago
Total nucleic acids are extracted from a culture of yeast cells and are then mixed with resin beads to which the polynucleotide
mr Goodwill [35]

The question is incomplete as it does not have the options which are:

(a)DNA (b)tRNA (c)rRNA (d)mRNA

Answer:

Option-mRNA

Explanation:

The mRNA is synthesized from the DNA and which is also a type of nucleic acid. When the nucleic acid is extracted from the yeasts and then mixed with the resin beads to which the polynucleotide with thymine base oar is attached.

The mRNA will bind to the resin bead as the mRNA after synthesis undergoes modification and attaches poly A tail to the end of the mRNA at 3' end.

This poly-A tail has adenine which easily binds to the thymine and thus mRNA easily attaches to the resin bead.

Thus, mRNA is correct.

5 0
3 years ago
Other questions:
  • Arrange the processes of the water cycle in the correct order, starting with the heat from the sun
    10·2 answers
  • Is coal considered a mineral or not?
    8·2 answers
  • Что такое финотип мониторинг по биология
    8·2 answers
  • What are the two nodes in the heart that are the pace makers?
    8·2 answers
  • Which is most likely to promote the growth of animals?
    14·1 answer
  • compare the chemical equations for photosynthesis and cellular respiration explain how the two processes are interrelated
    7·1 answer
  • What determines the shape of a snow crystal?
    5·2 answers
  • The heart is the major organ of the circulatory system. Which part of the body is responsible for delivering de-oxygenated blood
    11·1 answer
  • Of the following characteristics, which one is NOT true about enzymes?
    7·2 answers
  • What are the functions of the stratum corneum layer of the skin? select all that apply.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!