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
Softa [21]
3 years ago
8

A low resistance light bulb and a high resistance light bulb are connected in parallel with each other. Which bulb is brighter i

f the parallel combination is in series with a battery?
Physics
1 answer:
sweet [91]3 years ago
6 0
<h2>Answer:</h2>

The bulb with low resistance will be brighter.

<h2>Explanation:</h2>

The brightness of a bulb is a function of both the voltage across the bulb and current flowing through the bulb. The higher the voltage, the higher the current. Hence the brighter the bulb.

Now, according to the question, the bulbs (the high resistance bulb and the low resistance bulb) are connected in parallel with each other. This means that the same voltage passes across them.

Also, we know that according to Ohm's law, the voltage (V) and current (I) through a conductor are related by the following equation;

V =  I x R                -------------------(i)

Where;

R is the resistance of the conductor.

We can re-write equation (i) as follows;

I = V / R               -----------------------(ii)

According to equation (ii), at fixed voltage (V), the current (I) will increase as the resistance (R) decreases.

Now, since the two bulbs have the same voltage, the bulb with the low resistance will allow a larger flow of current than the bulb with high resistance.  Therefore, as said earlier that brightness is dependent on voltage and current, the bulb with the low resistance (and having larger current at some voltage) will be brighter than the bulb with the high resistance (having smaller current at same voltage).

You might be interested in
What time of the day do you feel the most Energetic and what do you usually do in those moments?​
iren2701 [21]

Answer:

i typically feel the kost awake at night. i do my work (organize patinet info, label patient charts... etc.).

Explanation:

my circadian rythm is out of whack bc of dld

4 0
3 years ago
Read 2 more answers
A 5.22×104 kg railroad car moves on frictionless horizontal rails until it hits a horizontal spring stopper with a force constan
In-s [12.5K]

To solve this problem we will apply the principles of conservation of energy, for which we have to preserve the initial kinetic energy as elastic potential energy at the end of the movement. If said equality is maintained then we can affirm that,

\text{Initial Energy}=\text{Final Energy}

\frac{1}{2} mv^2=\frac{1}{2} kx^2

Here,

m = mass

k = Spring constant

x = Displacement

v = Velocity

Rearranging to find the velocity,

mv^2 = kx^2

v^2 = \frac{kx^2}{m}

v = \sqrt{\frac{kx^2}{m}}

Our values are,

m = 5.22*10^4kg

k = 4.58*10^5N/m

x = 32cm = 0.32m

Replacing our values we have,

v = \sqrt{\frac{(4.58*10^5)(5.22*10^4)}{0.32}}

v = 2.733*10^5m/s

Therefore the velocity is 2.733*10^5m/s

8 0
3 years ago
For metalloids on the periodic table, how do the group number and the period number relate?
lapo4ka [179]
Im guessing it's (a) since the numbers go in chronological order and you read the periodic table left to right
3 0
3 years ago
Read 2 more answers
Segment D - E : The bus is speed_____ It is gradually increasing it's
Lostsunrise [7]
B.) Speeding up......
4 0
3 years ago
Which of the following is a process that occurs at divergent boundaries?
PIT_PIT [208]
The appropriate answer is 4. The formation of Mid-Ocean ridges. There are two types of divergent margins: continental separation and oceanic floor spreading. Where the sea floor separates magma upwells and new oceanic crust is formed. Mid ocean ridges are home to hydrothermal vents. These support a unique ecosystem of marine organisms. The Mid- Atlantic Ridge where the African and Eurasian plates separate from the North and South American plates.
7 0
3 years ago
Other questions:
  • In addition to births and deaths what else can influence the population growth rate ?
    10·1 answer
  • As the solar system was forming, ________ came closest to undergoing nuclear fusion and becoming a second sun
    6·1 answer
  • What is the main difference between the atmospheres of Jupiter and Neptune?
    12·2 answers
  • When the only force affecting an object is gravity,that object is in _______________
    15·1 answer
  • Your teacher has given each lab group four liquids. Each liquid has been tinted using food coloring. Your teacher has asked you
    10·2 answers
  • Predict Two objects have unlike charges. How
    5·1 answer
  • How many Mexicans are in Mexico compared to Americans in America?
    9·1 answer
  • What property of matter is momentum related to
    10·2 answers
  • The other name for 'net force' is 'unbalanced force'. What is the name of the force that could be applied to an object that woul
    6·1 answer
  • Mass m1 on the frictionless table of the figure is connected by a string through a hole in the table to a hanging mass m2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!