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
zavuch27 [327]
3 years ago
11

An electric filament lamp is connected to a power supply and switched on.

Physics
1 answer:
ladessa [460]3 years ago
7 0
This is because of of the heating effect of a current. The glow is a result of current passing through the filament. The current experiences resistance as a result heat is generated. When resistance is at zero, there potential differences is not needed hence temperature generated will be at a constant.
You might be interested in
1) What are the parts of a longitudinal wave? How are they different?<br> ***
Kay [80]

Answer:

Compression- pushing together

Refraction- pulling apart

Wavelength- the length of the wave

Explanation:

I just knew it

~Plz click the crown~

3 0
3 years ago
What is the total entropy change if a 0.280 efficiency engine takes 3.78E3 J of heat from a 3.50E2 degC reservoir and exhausts i
babymother [125]

Answer:

\Delta S=1.69J/K

Explanation:

We know,

\eta=1-\frac{T_2}{T_1}=1-\frac{Q_2}{Q_1}      ..............(1)

where,

η = Efficiency of the engine

T₁ = Initial Temperature

T₂ = Final Temperature

Q₁ = Heat available initially

Q₂ = Heat after reaching the temperature T₂

Given:

η =0.280

T₁ = 3.50×10² °C = 350°C = 350+273 = 623K

Q₁ = 3.78 × 10³ J

Substituting the values in the equation (1) we get

0.28=1-\frac{Q_2}{3.78\times 10^{3}}

or

\frac{Q_2}{3.78\times 10^3}=0.72

or

Q_2=3.78\times 10^3\times0.72

⇒ Q_2 =2.721\times 10^3 J

Now,

The entropy change (\Delta S) is given as:

\Delta S=\frac{\Delta Q}{T_1}

or

\Delta S=\frac{Q_1-Q_2}{T_1}

substituting the values in the above equation we get

\Delta S=\frac{3.78\times 10^{3}-2.721\times 10^3 J}{623K}

\Delta S=1.69J/K

7 0
3 years ago
A boat sails along the shore. To an observer, the boat appears to move at a speed of 11 m/s, and a man on the boat walking forwa
amid [387]

You first subtract the speed at which the man is moving (11 m/s) from the rate the boat is moving (12.4 m/s). Which equals 1.4, then divide it by 6 meters, as the man is moving relative to the boat.

It therefore equals 4.29 s

4 0
3 years ago
Read 2 more answers
Which is the oldest geological feature of the moon?
Firlakuza [10]

Highlands

The Lunar Highlands

Which are 4.4 Billion Years old

4 0
3 years ago
A bicycle traveled 150 meters west from point A to point B. Then it took the same route and came back to point A. It took a tota
Zinaida [17]

Answer:

speed=distance÷time

150÷0. 033

8 0
3 years ago
Read 2 more answers
Other questions:
  • A moving cyclist sees traffic up ahead and begins slowing down with constant acceleration. After slowing down for 0.5\,\text{s}0
    14·1 answer
  • Caves are a type of island ecosystem according to the theory of island biogeography. Please select the best answer from the choi
    8·1 answer
  • A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provid
    8·1 answer
  • List four ways of separate a mixture
    11·1 answer
  • Is it possible to have a charge of 5 x 10-20 C? Why?
    7·1 answer
  • The speed at which a wave is transmitted depends on_____
    10·1 answer
  • A body moving at .500c with respect to an observer
    10·1 answer
  • Why do paradigms change over time
    6·1 answer
  • Mention &amp; reasons why the ability to adapt to change is
    15·1 answer
  • The frequency of the given sound is 1.5khz then how many vibration it is completing in one second ?​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!