3 years ago

The charges that are free to move in a metallic conducting wire and that are responsible for the flow of electric current are

Physics

1 answer:

Anna007 [38]3 years ago

6 0

Answer:Negatively charged particle called Free Electrons

Explanation:

Current is the flow of charged particles called Free electrons. Electrons are free to move from one atom to another and we call them a sea of de-localized electrons. In absence of any externally applied emf, these electrons are randomly moving but with the onset of emf, these electrons flow in a particular direction.

You might be interested in

Calculate the wavelength associated with electrons moving with p.d of 1500v

Artist 52 [7]

Answer:

3.16X10∧-11 m

Explanation:

1/2 mv2 = qV (KE = Electric potential energy)

velocity = √2qV/m = √( 2X 1.6X10∧-19 X 1500/9.11X10∧-31)

2.3X10∧7m/s

now use De Broglie equation

λ = h/mv

= 6.62X10∧-34/( 9.11X10∧-31 X 2.3X10∧7)

3.16 X 10∧-11 m

use the above equations and substitute to get the final eqiation

λ = h/√(2mqV) = 3.16X 10∧-11 m

4 0

3 years ago

What is the resistance of a bulb of 40w connected in a line of 70v

olga55 [171]

Answer:

122.5 ohm

Explanation:

Given :

P=40 w

V= 70 V

R=?

Resistance can be calculated as :

$P=\frac{V^{2} }{R} \\40=\frac{(70)^{2} }{R}\\40=\frac{4900}{R} \\R=\frac{4900}{40} \\R=122.5 ohm$

Therefore, resistance of the bulb will be 122.5 ohm

4 0

3 years ago

Working to ensure that women get paid the same as a man for the same work is an example of? Social dysfunction, soical conflict,

Tom [10]

Answer:

social justice is the correct answer

Explanation:

4 0

3 years ago

Personal ethics comes from a person's likes and dislikes true or false?

Artemon [7]

Personal ethics come from what you believe in as a person no what u or others like or dislike so ot would be false

5 0

3 years ago

Read 2 more answers

What is the energy of an electromagnetic wave that has a frequency of 5.0 * 10^5 Hz? Use the equation E=hf, where h=6.626 * 10^-

AfilCa [17]

Answer:

3.3*10^-28j

Explanation:

A P E X

3 0

3 years ago