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
vivado [14]
3 years ago
5

What is the unit for measuring electric current? A.Volt B.ampere C.ohm D.coulomb

Physics
2 answers:
Pachacha [2.7K]3 years ago
8 0

Answer:

B. ampere

Explanation:

Edg 2020

ahrayia [7]3 years ago
6 0

Answer:

B. Ampere

Explanation: I took a test.

You might be interested in
 How does ​energy change (transforms) as the mass is dropping?
olganol [36]

Answer:

Mass has total mechanical energy, which is the sum of kinetic and potential energy. as the mass is dropping, potential energy is converted into kinetic energy so mechanical energy is preserved If there is no friction. If there is friction, some of the mechanical energy is lost as heat energy so it changes.

Explanation:

4 0
3 years ago
BLANK causes movement of an object, whereas BLANK is the work done on an object in a given amount of time.
Setler [38]
The first one is Force & the second one Power.
3 0
3 years ago
Read 2 more answers
A 10 gauge copper wire carries a current of 20 A. Assuming one free electron per copper atom, calculate the magnitude of the dri
nordsb [41]

Complete Question

A 10 gauge copper wire carries a current of 20 A. Assuming one free electron per copper atom, calculate the drift velocity of the electrons. (The cross-sectional area of a 10-gauge wire is 5.261 mm2.) mm/s

Answer:

The drift velocity is v  = 0.0002808 \ m/s

Explanation:

From the question we are told that

    The current on the copper is  I  = 20 \ A

     The cross-sectional area is  A =  5.261 \ mm^2 =  5.261 *10^{-6} \ m^2

The number of copper atom in the wire is  mathematically evaluated

      n  =  \frac{\rho *  N_a}Z}

Where \rho is the density of copper with a value \rho =  8.93 \ g/m^3

          N_a is the Avogadro's number with a value N_a  = 6.02 *10^{23}\ atom/mol

         Z  is the molar mass of copper with a value  Z =  63.55 \ g/mol

So

     n  =  \frac{8.93 * 6.02 *10^{23}}{63.55}

     n  = 8.46 * 10^{28}  \  atoms /m^3

Given the 1 atom is equivalent to 1 free electron then the number of free electron is  

         N  = 8.46 * 10^{28}  \  electrons

The current through the wire is mathematically represented as

         I  =  N * e * v * A

substituting values

        20 =  8.46 *10^{28} * (1.60*10^{-19}) * v *  5.261 *10^{-6}

=>     v  = 0.0002808 \ m/s

       

8 0
3 years ago
Tenses of<br>write=<br>read=<br><br>​
PilotLPTM [1.2K]

Answer:

present

Explanation:

read doesn't change but write is in present tense

7 0
3 years ago
All of the following are shaped by learned behavior except __________. A. shyness B. blinking C. biting one’s nails D. angry res
Dvinal [7]
Blinking, that’s an involuntary behavior
7 0
3 years ago
Read 2 more answers
Other questions:
  • When you ride a bike and make a turn, you can feel your body trying to move in the same direction the bike was going. Which of N
    15·1 answer
  • I AM THE RED BLOOD CELL STORY<br> My manufacturing process goes by a fancy name of _______.
    7·2 answers
  • Hey can anyone help me wih these questions please
    13·1 answer
  • Define investigation to show its scientific meaning.
    10·1 answer
  • Which hypothesis could be used in a scientific experiment and possibly lead to more hypotheses and experimentation? If the amoun
    8·2 answers
  • उत्तोलक हुन् ?
    11·1 answer
  • . Suppose that a positive charge is brought near a neutral, insulating piece of material. Is the positive charge attracted, repe
    6·1 answer
  • HELP!! Explain why a more streamlined car generally will have a better fuel economy than a bulkier car with the same mass.
    12·2 answers
  • A basketball is tossed upwards with a speed of 5.0\,\dfrac{\text m}{\text s}5.0
    14·1 answer
  • What thermodynamic property describes the relationship of an equilibrium to temperature?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!