1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
d1i1m1o1n [39]
2 years ago
7

4. If a charged body is negatively charged, it has excess of _______

Physics
1 answer:
Amiraneli [1.4K]2 years ago
4 0

Answer:

Electrons

Explanation:

Electrons are negatively charged sub-atomic particles, therefore when a body's negatively charged, it means that there's more electrons than protons.

You might be interested in
Is there any induced current in the pickup coil when the polarity of the bar magnet is flipped?
stiks02 [169]

Answer:

Faraday's law , he direction of the magnetic field changes by 180º, in the polarity inversion processes, induces a voltage.  

Explanation:

For this exercise let's use Faraday's law

          E = - dФ / dt

          Ф = B.A = B A cos θ

where B is the magnetic field, A is the area and θ is the angle between the field line and the normal to the area.

We can see that an electromotive force (voltage) is indexed when there is a variation of the field B, a variation of the area and change of the angle or when there is a combinational of them.

In this case, the magnitude of the field is constant, as the wire is rigid metal, the area is constant, but the direction of the magnetic field changes by 180º, in the polarity inversion processes, for which reason each change induces a voltage.

If a voltage is created in the ring, which has a resistance, a current is also generated in it.

Therefore the answer is If a current is created in the hoop

8 0
2 years ago
What demonstrates the flow of energy and materials through
Tcecarenko [31]
A. Food chain

A food web also shows the flow of energy and materials through an ecosystem but in a complex web, not a single chain. A biogeochemical cycle does not deal with the flow of energy/materials through an ecosystem at all.
3 0
1 year ago
A student wants to determine the impulse delivered to the lab cart when it runs into the wall. The student measures the mass of
WINSTONCH [101]

The correct answer to the question is : A) The velocity of the cart after it hits the wall.

EXPLANATION:

Before answering this question, first we have to understand impulse.

Impulse of a body is defined as the change in momentum or the product of force with time.

Mathematically impulse = m ( v- u ).

Here, v is the final momentum and u is the initial momentum.

Hence, we need the velocity of the cart after it hits the wall in order to calculate the impulse of the lab cart.

4 0
3 years ago
Read 2 more answers
Can someone please answer this, ill give you brainliest and your getting 100 points.
Nastasia [14]

Explanation:

Science says that youngest rock can be found in between ocean .

So plates should move away from each other to form ocean .

Option C is correct

8 0
2 years ago
Read 2 more answers
Metallurgy is the study of _____.
vitfil [10]
Forming ionic bonds study
6 0
2 years ago
Read 2 more answers
Other questions:
  • To calculate the ideal mechanical advantage of a lever divide the input arm by the
    14·1 answer
  • A steel tape (a=1.300 E-5 per Celsius degrees) measures 200.0 m at 15.00 degrees celsius. It’s length at 55.00 degrees celsius i
    11·1 answer
  • Please help me asapp!!!!!!!!!!!!!!!!
    10·2 answers
  • A material's ability to allow heat or electricity to flow through it...
    14·1 answer
  • Can neutrons be accelerated in a cyclotron?Give reason.
    9·1 answer
  • What particle flows to produce electric current
    8·1 answer
  • Helloooooooooooo<br><br><br> A) HI<br><br> B) GO AWAY<br><br> C) BYE FELICIA<br><br> D) HELLO MATE
    13·1 answer
  • El Niño occurs every seven years without fail.<br><br> True<br> False
    8·1 answer
  • Suppose you have two metal spheres that are exactly the same size, separated by a very large distance. Sphere A carries an exces
    8·1 answer
  • If you increase the frequency of a sound wave four times, what will happen to its speed?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!