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
Setler [38]
3 years ago
10

A 100-turn, 3.0-cm-diameter coil is at rest in a horizontal plane. A uniform magnetic field 60%u2218 away from vertical increase

s from 0.50 T to 2.5T in 0.90s .
What is the induced emf in the coil?
Physics
1 answer:
Xelga [282]3 years ago
8 0

Answer:

Induced emf in the coil, E = 0.157 volts

Explanation:

It is given that,

Number of turns, N = 100

Diameter of the coil, d = 3 cm = 0.03 m

Radius of the coil, r = 0.015 m

A uniform magnetic field increases from 0.5 T to 2.5 T in 0.9 s.

Due to this change in magnetic field, an emf is induced in the coil which is given by :

E=-NA\dfrac{\Delta B}{\Delta t}

E=-100\times \pi (0.015)^2\times \dfrac{2.5-0.5}{0.9}

E = -0.157 volts

Minus sign shows the direction of induced emf in the coil. Hence, the induced emf in the coil is 0.157 volts.

You might be interested in
How do you calculate the wavelength?
algol13
Wavelength is defined as distance between two troughs or two crests !!

so in this wavelength is 4 metres !!
3 0
3 years ago
Read 2 more answers
In a certain time interval, natural gas with energy content of 19000 J was piped into a house during a winter day. In the same t
Tcecarenko [31]

Answer:

The amount of heat transfer is 21,000J .

Explanation:

The equation form of thermodynamics is,

ΔQ=ΔU+W

Here, ΔQ is the heat transferred, ΔU is the change in internal energy, and W is the work done.

Substitute 0 J for W and 0 J for ΔU

ΔQ = 0J+0J

ΔQ = 0J

The change in internal energy is equal to zero because the temperature changes of the house didn’t change. The work done is zero because the volume did not change

The heat transfer is,

ΔQ=Q  (in ) −Q (out )

Substitute 19000 J + 2000 J for Q(in)  and 0 J for Q(out)

ΔQ=(19000J+2000J)−(0J)

=21,000J

​Thus, the amount of heat transfer is 21,000J .

​

8 0
3 years ago
Read 2 more answers
A submarine travels 25 km/h north for 3.2 hours. What is its displacement?
Vika [28.1K]

displ = velocity x time

25 x 3.2 = 75+5 km north.

7 0
2 years ago
Read 2 more answers
The density of water is 1.00 g/cm3. What is its density in kg/m3?
r-ruslan [8.4K]
1 g = 1 ÷ 1000 kg
= 0.001 kg

1 cm³ = 1 ÷ 100 ÷ 100 ÷ 100 m³
= 0.000001 m³

1 g/cm³ = 1 g / 1 cm³
= 0.001 kg / 0.000001 m³
= 1000 kg/m³

The density is 1000 kg/m³.
3 0
2 years ago
Which state of matter has atoms that are spread out and bouncy?
NikAS [45]
The stage where atoms are spread out and bouncy is the gas stage.

7 0
2 years ago
Other questions:
  • Please help me with this question. BRAINLIEST if answered.
    14·1 answer
  • What happens when you put a galvanized zinc nail in copper solution for an hour? Does is rust or turn different color? What is t
    12·1 answer
  • Hiw many times lager then a centimeter is a dekagram​
    5·1 answer
  • A hydraulic cylinder is to compress a car body down to bale size in 30 sec. The operation requires a 25 ft stroke and a 9500-lb
    7·1 answer
  • If you are standing at Earth’s North Pole, which of the following will be directly overhead?
    10·1 answer
  • A balloon is filled with water. The balloon is heated and begins to expand. The water inside begins to turn into steam. What wil
    12·2 answers
  • You stand 1.40 m in front of a wall and gaze downward at a small vertical mirror mounted on it. In this mirror you can see the r
    15·1 answer
  • A car moving in the positive direction with an initial velocity of 26 m/s slows down at a constant rate of -3 m/s2. What is its
    13·1 answer
  • What is a four chord song??
    15·1 answer
  • Use the following formula to answer the following statement. Round to the nearest tenth.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!