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Nata [24]
3 years ago
14

What is the strength of the electric field 0.020 m from a 12 uc charge?

Physics
1 answer:
belka [17]3 years ago
5 0

Answer:

Option B is correct.

Explanation:

Given the charge, Q = 12uC

Now convert the uC into C = 5*10^-6 C

Given, d = 0.020 m

Now use the below formula:

E = K*Q/d^2

Now insert all the values in the above formula and then solve.

E = (9 ×10^9) × (12×10^-6) / (0.020)^2

E  = 2.7 ×10^8 N/C

Therefore option B is correct.

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6 0
3 years ago
Read 2 more answers
An electron moves in a circular path perpendicular to a constant magnetic field with a magnitude of 2.50 mT. The angular momentu
liberstina [14]

Answer:

Explanation:

The angular momentum of electron mvR = 6 x 10⁻²⁵  Js

Magnetic field B = 2.5 x 10⁻³ T

radius of circular path R = mv / Bq

where m is mass , v is velocity and q is charge on electron

R² = mvR / Bq

R² = 6 x 10⁻²⁵ / 2.5 x 10⁻³ x 1.6 x 10⁻¹⁹

= 1.5 x 10⁻³

R = 3.87 x 10⁻² m

mvR = 6 x 10⁻²⁵

v = 6 x 10⁻²⁵  / mR

= 6 x 10⁻²⁵  / 9.1 x 10⁻³¹ x 3.87 x 10⁻²

= .17 x 10⁸

= 17 x 10⁶ m/s

6 0
3 years ago
Can someone do this assignment for me about <br> force
trasher [3.6K]

Answer:

Newtons 3sd law

Force = mass × acceleration

3rd photo about momentum

4 0
3 years ago
If you start a new school year by changing bad habits from last school year and your grades improve which approach would this be
Ivanshal [37]

Answer:

Evolutionary

Explanation:

8 0
3 years ago
A hydrogen atom that has lost its electron is moving east in aregion where the magnetic field is directed from south to north. I
Kitty [74]

Answer:

a. up

Explanation:

As per the rule of Fleming left hand, the three fingers should be places in a perpendicular manner i.e. mutually also.

The fore finger depicts the field direction

The middle finger depicts the velocity

And, the thumb finger depicts the force direction that experienced on that particle i.e. charged

So the electrons would be deflects to up

Hence, the correct option is a.

5 0
3 years ago
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