Physics, 29.10.2019 06:31 Shami7457

A9.6 cm diameter circular loop of wire is in a 1.10 t magnetic field perpendicular to the plane of the loop. the loop is removed from the field in 0.15 s what is the average induced emf? draw the loop and field and indicate the direction of the induced current

Answers: 3

Show answers

Answers

Answer from: miguegen6225

Thus induced emf is 0.0531 V

Solution:

As per the question:

Diameter of the loop, $d = 9.6\ cm = 0.096\ m$

Thus the radius of the loop, R = 0.048 m

Time in which the loop is removed, t = 0.15 s

Magnetic field, B = 1.10 T

Now,

The average induced emf, e is given by Lenz Law:

$e = - \frac{\Delta \phi_{B}}{\Delta t}$

where

$\phi_{B}$ = magnetic flux = $A\Delta B$

where

A = cross sectional area

Also, we know that:

$e = - \frac{A\Delta B}{\Delta t}$

$e = - \frac{\pi r^{2}\times (0 - 1.10)}{0.15}$

$e = - \frac{\pi \times 0.048^{2}\times (0 - 1.10)}{0.15}$

e = 0.0531 V

The sketch is shown in the figure, where I indicates the direction of the induced current.

A9.6 cm diameter circular loop of wire is in a 1.10 t magnetic field perpendicular to the plane of t

Answer from: artiomtyler007

emf=0.531 V

Explanation:

Induced EMF is equals to the change in the Magnetic flux per unit change in time.

It is calculated by the Faraday's law which is given mathematically as:

$emf=N \times \frac{\Delta (B.A) }{\Delta t}$ ..................................(1)

where:

N= number of turns in looped coil of wireB= magnetic fieldA= area of the loop formed by the wiret= change in time $\Delta$ = change in the quantity from initial to final state.

Given:

N=1 (since it is a loop not a coil of loops)

Diameter of loop, d = 9.6 cm

B = 1.10 T

${\Delta t}$ = 0.15 s

Firstly, we find the area of loop:

$A= \pi \frac{d^{2}}{4}$

$A= \pi \frac{(9.6 \times 10^{-2} )^{2}}{4}$

$A= 7.2382 \times 10^{-3} m^{2}$

Putting respective values in eq. (1)

$emf=1\times \frac{\Delta (1.10\times 7.2382 \times 10^{-3}) }{0.15}$

emf=0.531 V

THe direction of the induced emf is in accordance with the Lenz Law which states that the direction of an induced current is always such as to oppose the cause by which it is produced.

Answer from: Quest

Ithink the answer is d i hope it my friend message me if i’m wrong and i’ll change my answer and fix it for you

Answer from: Quest

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

Another question on Physics

Physics, 22.06.2019 03:30

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

Answers: 1

Answer

Physics, 22.06.2019 04:30

In a system, when potential energy decreases, then entropy also decreases. true false

Answers: 3

Answer

Physics, 22.06.2019 10:00

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.

Answers: 1

Answer

Physics, 22.06.2019 23:00

Which type of reaction is shown in this energy diagram ?

Answers: 1

Answer

You know the right answer?

A9.6 cm diameter circular loop of wire is in a 1.10 t magnetic field perpendicular to the plane of t...

Questions

Physics, 23.09.2019 19:00

To meet a u. s. postal service requirement, employees' footwear must have a coefficient of static friction of 0.5 or more on a specified tile surface....