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
Ilia_Sergeevich [38]
3 years ago
12

Light bulb is connected to a 110-V source. What is the resistance of this bulb if it is a 100-W bulb

Physics
1 answer:
masya89 [10]3 years ago
5 0

Answer:

<h2>121ohms</h2>

Explanation:

Formula used for calculating power P = current * voltage

P = IV

From ohms law, V = IR where R is the resistance. Substituting V = IR into the formula for calculating power, we will have;

P = IV

P =(V/R)V

P = V²/R

Given parameters

Power rating of the bulb P = 100 Watts

Source voltage V = 110V

Required

Resistance of the bulb R

Substituting the given parameters into the formula for calculating power to get Resistance R;

P = V²/R

100 = 110²/R

R = 110²/100

R = 110 * 110/100

R = 12100/100

R = 121 ohms

<em>Hence, the resistance of this bulb is 121 ohms</em>

You might be interested in
Explain how to determine the volume of an irregularly shaped object such as a rock
alexira [117]
If you have no way to accurately measure all of the object's bumps and dimples, then the only way to measure its volume is by means of fluid displacement. 

-- Put some water into a graduated (marked) container, read the amount of water, drop the object into the container, and read the new volume in the container.  The volume of the object is the difference between the two readings.

-- Alternatively, stand an unmarked container in a large pan, and fill it to the brim. Slowly slowly lower the object into the unmarked container, while the pan catches the water that overflows from it.  When the object is completely down in the container, carefully remove the container from the pan, and measure the volume of the water in the pan.  It's equal to the volume of the object.
6 0
4 years ago
A trip is taken that passes through the following points in order
AURORKA [14]

Answer:

15? I actually don't know

3 0
3 years ago
A cardboard box has four forces acting upon it, as shown in the diagram below. What is the magnitude of the unknown force, Funkn
shutvik [7]
D. 11N
Nznsnksksksksmsmsms
4 0
3 years ago
Define wheel and axle in science terms
topjm [15]

Answer:

A simple machine consisting of an axle to which a wheel is fastened so that torque applied to the wheel winds a rope or chain onto the axle, yielding a mechanical advantage equal to the ratio of the diameter of the wheel to that of the axle.

5 0
3 years ago
What factors determine climate?
const2013 [10]

Answer:

here

Explanation:

Climate is determined by the temperature and precipitation characteristics of a region over time. The temperature characteristics of a region are influenced by natural factors such as latitude, elevation and the presence of ocean currents.

3 0
3 years ago
Other questions:
  • Under metric prefixes, if a meter were divided into 100 equal-sized subunits, a single unit would be called a
    11·1 answer
  • a red, 0.1 kg marble hits a blue, 70 g marble. after the collision the red marble is moving at 10 m/s and the blue marble is mov
    9·1 answer
  • A +7.5 nC point charge and a -2.0 nC point charge are 3.0 cm apart. What is the electric field strength at the midpoint between
    9·1 answer
  • For this exercise, use the position function s(t) = −4.9t2 + 250, which gives the height (in meters) of an object that has falle
    10·1 answer
  • Mendeleev noticed that if he organized the elements by atomic weight certain patterns emerged. for instance, elements in the sam
    15·2 answers
  • A mass spectrometer is used to examine the isotopes of uranium. Ions in the beam emerge from the velocity selector at a speed of
    11·1 answer
  • Give one chemical and physical property of wood.
    14·1 answer
  • A 0.20 mass on a horizontal spring is pulled back a certain distance and released. The maximum speed of the mass is measured to
    9·1 answer
  • Take some pieces of papers of leaf size and make them waterproof. Put half in the hot water and put half in the cold water do al
    12·1 answer
  • Edwin Hubble discovered that:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!