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
lys-0071 [83]
4 years ago
11

A wooden ring whose mean diameter is 15.0 cm is wound with a closely spaced toroidal winding of 555 turns. Compute the magnitude

of the magnetic field at the center of the cross section of the windings when the current in the windings is 0.670 A.
Physics
1 answer:
ruslelena [56]4 years ago
7 0

Answer:

9.916\times 10^{-4}T

Explanation:

Diameter of toroid is 15 cm =0.15 m

So length of the toroid is l=\pi d=3.14\times 0.15=0.471\ m

Number of turns of the toriod is given as 555

Current through the toroid is 0.670 A

Magnetic field B=\mu _0ni=\mu _0\frac{N}{L}i=4\pi \times 10^{-7}\times \frac{555}{0.471}\times 0.670=9.916\times 10^{-4}T

You might be interested in
Power is measured in:
gogolik [260]
Power is the rate of doing work.
Its unit is joules/second.
That unit is used so often that a new word was adopted for it.

                     1 joule/sec  =  1 watt
7 0
3 years ago
Use the following information to answer the next question.
diamong [38]

Answer:

B. 1.55 × 10³ m/s

Explanation:

f = 3.02 x 10^6 Hz

wavelength = 5.13 x 10^-4 m

v = ?

v = f*lamda

v = 3.02 x 10^6 × 5.13 x 10^-4

v = 1.55 × 10³ m/s

8 0
4 years ago
What is the half-life of an isotope if 125 g of a 500 g sample of the isotope remains after 3.0 years?
Troyanec [42]

Answer:

125 / 500 = 1/4    of the sample left after 3.0 yrs

1/2 * 1/2 = 1/4        sample has decayed thru 2 half-lives

2 * HL = 3

1 Half-Life = 1.5 yrs

3 0
2 years ago
A force F acting on an object of mass m causes a displacement d. The angle between these two vectors is Θ. The work W done on th
777dan777 [17]
Work:
W= \int\limits^b_a {F.} \, ds

F: force
ds: displacement

Assuming the work is constant:

W= \int\limits^b_a {F.} \, ds =  F . d = F * cos\theta * d

d displacement


4 0
3 years ago
WILL UPVOTE! MULTIPLE CHOICE!
Stels [109]
1. A. The SI unit for current is the ampere.
2. C. The unit for resistance = ohm.
3. B. EMF is measured in volts.
4. B. Electric current is the flow of charged particles, i.e. electrons.
5. B or C. All other answers are metals.
6. C. The dimensions of a material don't affect its resistance.
7. D. Ohm's law: current = voltage / resistance, 12/4 = 3.
8. B. Batteries transform chemical energy into electrical energy.
9. A. Metals are generally good conductors.
6 0
4 years ago
Other questions:
  • Consider a bicycle wheel to be a ring of radius 30 cm and mass 1.5 kg. Neglect the mass of the axle and sprocket. If a force of
    11·1 answer
  • How do resistors in parallel affect the total resistance?
    7·1 answer
  • By measuring the amounts of parent isotopes and daughter product in the minerals contained in a rock, and by knowing the half-li
    8·1 answer
  • (a) Calculate the magnitude of the gravitational force exerted by Mars on a 80 kg human standing on the surface of Mars. (The ma
    12·1 answer
  • Which of the following would NOT affect the level at which a canoe floats in a pond
    7·1 answer
  • A 120 V, 60 Hz power source is connected in series across an 800 Ω resistance and an unknown capacitance in series. The voltage
    10·2 answers
  • A 630 W bulb and a 315 W bulb are both designed to operate at standard household voltage of 120 V. Determine which bulb has the
    9·1 answer
  • Ground reaction force acting on carter
    12·1 answer
  • Are cells made of tisse?
    14·2 answers
  • What class of lever is shown below?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!