3 years ago

A conductor differs from an insulator in that a conductor.

Physics

1 answer:

Zina [86]3 years ago

4 0

Answer:

has free electrons

Explanation:

A conductor has free electrons while an insulator does not. Free electrons are electrons which are not bounded tightly to their parent atoms, and are free to move given the right conditions (ie. a strong EM field).

You might be interested in

Which of the following statements best describes an electromagnetic wave with a long wavelength?

zmey [24]

It has a high frenquency and can only travel through a medium

5 0

3 years ago

a wave travels at a speed of 793 m/s and has a wavelength of 2.3 meters. calculate the frequency of the wave

Savatey [412]

Answer:

344.8 Hz

Explanation:

The frequency of a wave is given by:

$f=\frac{v}{\lambda}$

where

v is the speed of the wave

$\lambda$ is its wavelength

Here we have

v = 793 m/s

$\lambda=2.3 m$

Substituting into the equation, we find

$f=\frac{793 m/s}{2.3 m}=344.8 Hz$

4 0

3 years ago

How many stars has been observed by Hubble telescope till now ?

Hoochie [10]

Answer:

More Than 1.3 million.

Hope it helps :))

8 0

2 years ago

The objective lens and the eyepiece of a telescope are spaced 85 cm apart. If the eyepiece is123 D what is the total magnificati

dedylja [7]

Answer:

The magnification would be "103.55". A further explanation is given below.

Explanation:

The given values are:

Distance between lens and eyepiece,

L = 85 cm

Eyepiece is,

= 123 D

Now,

The refractive power of eye piece will be:

⇒ $\frac{1}{f_e}=123D$

$f_e=\frac{1}{123D}$

$f_e=0.813 \ cm$

The length of the telescope will be:

⇒ $L=f_0+f_e$

⇒ $f_0=L-f_e$

On substituting the values, we get

⇒ $=85-0.813$

⇒ $=84.187 \ cm$

Now,

The magnification of the telescope will be:

⇒ $M=\frac{f_0}{f_e}$

⇒ $=\frac{84.187}{0.813}$

⇒ $=103.55$

5 0

2 years ago

How many moles of MgCI2 are there in 347 g of the compound

aliina [53]

Try dividing 347 by the molecular mass of Mg added to that of Cl2.

7 0

3 years ago