All categories

3 years ago

Faraday's law states that voltage can be changed by moving the coil out of the magnetic field true or false

1 answer:

8 0

As per Faraday's law of induction we know that induced EMF in a conducting closed loop is equal to rate of change in flux in that loop

So here we have

$V = \frac{d\phi}{dt}$

now when we move out a coil from magnetic field then in this case there will be EMF induced in that coil as here magnetic flux is changing with time linked with the coil.

Now this induced voltage will remain constant if coil is moved out uniformly

But it will not remain constant if coil is moved out with non uniform speed

So this statement is not always true

so answer must be

FALSE

You might be interested in

force = mass x acceleration mass = force / acceleration acceleration = force / mass A 20 kg bike is moving at of 11 m/s². What f

earnstyle [38]

Answer:

220 N is the force

Explanation:

F=m x a

4 0

3 years ago

List 5 types of action energy and 4 types of potential energy

Taya2010 [7]

Well, kinetic energy is defined as energy in motion (or as you said, action energy). Now, in order to characterize something as kinetic energy, it needs to be in motion (e.x., movement on a rollercoaster, a ball falling, a ball rolling, a person running, or a car in motion, really, anything moving).
Potential energy is stored energy. For example, it could be the farthest point back when you pull a slingshot. Or being at the very top of a hill right before you fall back down it, or holding a ball at its highest point before you drop it. Another example, is water stored behind a dam waiting to be released. Hope this helps!

5 0

3 years ago

In a parallel circuit the component with the highest resistance will have a low electric current.

statuscvo [17]

Should be true.

it's been awhile since I was learning this

4 0

3 years ago

What work is done by a system on its environment when an ideal gas is maintained at a constant pressure of 200 newtons/meter2 du

Crank

Answer:

Work done done by a system on its environment is W=40 Joules

Explanation:

Given:

Ideal gas is maintained at a constant pressure $P=200 \frac{N}{m^{2}}$

Change in Volume $d v= -0.2 m^{3}$

To find:

Work done by a system during an Isobaric Process

Solution:

In a Isobaric Process, constant pressure is maintained, $P=200 \frac{N}{m^{2}}$

According to the formula,

work done $\bold{W=P \times d v}$

Substitute the values of pressure and change in volume in the above formula,

$=200 \times -0.2$

$=40 \text { Joules }$

Result:

Work done done by a system W= -40 Joules

8 0

3 years ago

Read 2 more answers

Which of the following are found within the electromagnetic spectrum? Check all that apply. sound waves visible light X rays ult

sattari [20]

Answer:

Visible light

X rays

ultraviolet radiation

gamma rays

microwave radiation

Explanation:

Electromagnetic waves consist of oscillating electric and magnetic fields which vibrate in a direction perpendicular to the direction of motion of the wave (transverse wave). Electromagnetic waves have all same speed in a vacuum ( $c=3.0\cdot 10^8 m/s$ , known as speed of light) and are classified into 7 different types according to their frequency and wavelength. This classification is called electromagnetic spectrum.

From lowest to highest wavelength, the 7 types are:

Gamma rays

X-rays

Ultraviolet radiation

Visible light

Infrared radiation

Microwaves

Radio waves

Sound waves, on the contrary, do not belong to the electromagnetic spectrum, since they are another type of wave called mechanical waves (which consist of vibrations of the particles in a medium).

8 0

3 years ago