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
Anarel [89]
3 years ago
11

What do the symbols mean???

Physics
1 answer:
Elena L [17]3 years ago
8 0

1. Fixed resistor ; A resistor is used to reduce the flow of electricity in an electric circuit. Resistors come in fixed or variable types. A fixed resistor cannot be changed as it is set at a specific value, whereas a variable resistor can manage flows at and below a specific level.

2. Variable Resistor ;

An electronic component that is used to vary the amount of current that flows through a circuit. It works by sliding a wiper terminal across a resistive material, typically a thin film or chunk of carbon or a resistive wire made of nickel chromium or tungsten alloys.

3. Thermistor ;

Converts heat to electrical resistance.

4. Light dependant resistor ;

Converts light to electrical resistance.

You might be interested in
What is the organ(s) that detect taste
Nata [24]
Your taste buds that are located on your tongue
6 0
4 years ago
Describe the process of electricity generation and the efficiency and economics of it
Mrac [35]

Answer:

The process of producing electric energy or the amount of electric energy produced by transforming other forms of energy into electrical energy; commonly expressed in kilowatt-hours (kWh) or megawatt-hours (MWh). Electric power plant efficiency η is defined as the ratio between the useful electricity output from the generating unit, in a specific time, and the energy value of the energy source supplied to the unit in the same time period.  For electricity generation based on steam turbines 65% of all prime energy is wasted as heat.  The maximum theoretical energy efficiency is defined in more detail by the Rankine cycle. For modern practical systems this is about 40% but less for older generating plant.  The efficiency falls still further if fuels with lower energy content such as biomass are used to supply the plant. The economics of power generation based on reciprocating engines depends to a large extent on the use to which the engine is to be put. The cheapest engines available are small petrol-driven engines based on car engines, which are manufactured in large numbers each year.

Explanation:

7 0
3 years ago
How much electromagnetic energy is contained in each cubic meter near the Earth's surface if the intensity of sunlight under cle
WITCHER [35]

Answer:

344.8 x10^-8J/m³

Explanation:

Using=> energy intensity/ speed oflight

= 1000/2.9x10^8

= 344.8 x10^-8J/m³

3 0
3 years ago
A mass of 4kg suspended by a light string 2m long and at rest is projected horizontally with a velocity of 1.5 m/s. find the ang
Dafna11 [192]

Answer:

19.5°

Explanation:

The energy of the mass must be conserved. The energy is given by:

1) E=\frac{1}{2}mv^2+mgh

where m is the mass, v is the velocity and h is the hight of the mass.

Let the height at the lowest point of the be h=0, the energy of the mass will be:

2) E=\frac{1}{2}mv^2

The energy when the mass comes to a stop will be:

3) E=mgh

Setting equations 2 and 3 equal and solving for height h will give:

4) h=\frac{v^2}{2g}

The angle ∅ of the string with the vertical with the mass at the highest point will be given by:

5) cos\phi=\frac{l-h}{l}

where l is the lenght of the string.

Combining equations 4 and 5 and solving for ∅:

6) \phi={cos}^{-1}(\frac{l-h}{l})={cos}^{-1}(1-\frac{h}{l})={cos}^{-1}(1-\frac{v^2}{2gl})

8 0
4 years ago
An ice cube melting into water is an example of: options:
Ugo [173]

A. physical

D. Upper right

5 0
3 years ago
Read 2 more answers
Other questions:
  • Who was the first russian to orbit the earth
    13·2 answers
  • Which is NOT a waste that is removed from the body by the excretory system?
    5·2 answers
  • Why is a shopping bag of feathers lighter than a shopping bag of nails?
    8·1 answer
  • 1. How much heat energy is required to raise the temperature of a 5 kg aluminium bar
    14·1 answer
  • Find the distance between each pair of points.
    11·1 answer
  • A 6.0 MeV alpha particle beam of cross section 5 cm2 is completely stopped in an ionization chamber producing a saturation curre
    14·1 answer
  • Which is structural and functional unit of neural system???​
    8·1 answer
  • What is the weight on Earth of a girl with a mass of 32 kg (F = ma)?
    6·1 answer
  • Complete the following sentences. a. The motion of the particles is a model of__________. . b. The movement of particles from on
    5·1 answer
  • A car is moving along a straight line op is shown below it moves from O to P in 8sec and return to p to q in 6sec. What is the a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!