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
Salsk061 [2.6K]
3 years ago
10

Which statement is true regarding copper's ability to conduct electricity?

Physics
2 answers:
zhenek [66]3 years ago
7 0
<span>Copper is a good conductor of electricity because its atoms have a loosely held electron in their outer shell that is able to move freely to other atoms.</span>
Rasek [7]3 years ago
5 0

Answer:

(i) Copper is a good conductor of electricity because its atoms have a loosely held electron in their outer shell that is able to move freely to other atoms.

Explanation:

Copper atoms has loosely held electrons in their outer shell. These electrons are not permanently associated with the copper atoms, instead They make a cloud around the outside of these atoms and are able to move freely and quickly through the solid.  

Option (ii) cannot be selected because copper is a good conductor. For the conductivity, free movement of electrons is a condition which is unsatisfied in the (iii). In (iv), it is given that copper has 1 electron in the outermost shell which can flow to the other copper atoms which is not true because in copper many atoms can flow to other atoms.

You might be interested in
An electric hair dryer is rated 350w 110v. the safety fuse in the circuit can withstand 12a of current. how many hair dryers can
spayn [35]
To determine the number of hair dryers that can be plugged in to a circuit, our basis is the maximum threshold of the current. The current which measures 12 Amperes. This current already incorporates the safety factor that is important in industrial setting.

The voltage and the current can be related to the power by the equation:

P = I*V, where I is the current in Amperes and V is the voltage in volts

Solving for the total power:

P = 12 A * 110 V
P = 1,320 Watts

Since the power rating of each hair dryer is 350 W, we divide this to the total power to determine the capacity.

Number of hair dryers = 1,320 Watts/350 Watts per hair dryer
Number of hair dryers = 3.77

In this case, we cannot round off to 4 because this would already exceed the maximum power capacity. Therefore, the total number of hair dryers allowable is 3.

8 0
4 years ago
Why does your body feel like it’s being pushed back when a car starts back up
WINSTONCH [101]

Answer:

cause of the g force pushing u back

Explanation:

5 0
3 years ago
train travels 1/4of its total distance over half of its time with a constant velocity of 5m/s. calculate the average velocity​
Katarina [22]

Let D be the total distance (say in meters) traveled by the train and T the time (say in seconds) it takes to do so. (Assume the train moves in a straight line in only one direction.) Then the average velocity of the train as it covers this distance is

v (ave) = D/T

We're told the train can traverse a distance of D/4 in a matter of T/2 seconds if it moves at a speed of 5 m/s. This means

D/4 = (5 m/s) (T/2)

⇒   5 m/s = 1/2 D/T

⇒   v (ave) = D/T = 10 m/s

3 0
3 years ago
suppose that you’re running a boy away from your dog who sits and watches you leave if you use the bicycle as a reference frame
solong [7]

Answer:

If you use the bicycle as a reference frame, your dog will appear to be moving backwards farther from you/your bicycle. Although the dog is sitting on one place, your bicycle is moving away from the dog

Explanation:

6 0
3 years ago
Your house is 45.0 m from a powerline carrying 152 A of current. How much magnetic field does the current create at your house?
Sedaia [141]

This question involves the concepts of th magnetic field and current.

The magnetic field created by the current at the house is "6.75 x 10⁻⁷ T".

<h3>Magnetic Field</h3>

The magnetic field created by a current carrying wire can be given by the following formula:

B=\frac{\mu_o I}{2\pi r}

where,

  • B = magnetic field = ?
  • \mu_o= permeabiliy of free space =4π x 10⁻⁷
  • I = current = 152 A
  • r = distance = 45 m

B=\frac{4\pi x\ 10^{-7}(152)}{2\pi(45)}

B = 6.75 x 10⁻⁷ T

Learn more about magnetic field here:

brainly.com/question/23096032

#SPJ1

7 0
2 years ago
Other questions:
  • Pulling out of a dive, the pilot of an airplane guides his plane into a vertical circle. At the bottom of the dive, the speed of
    7·1 answer
  • How fast is the earth moving through the universe?
    5·1 answer
  • What are the levels of organization within an ecosystem
    15·1 answer
  • A 0.5-kg ball accelerated at 50 m/s2 . What force was applied?
    5·2 answers
  • Which of the following takes place in the combustion chamber of a gas turbine engine?
    10·2 answers
  • A turtle ambles leisurely, as turtles tend to do, when it moves from a location with position vector ????1,x=1.33 m and ????1,y=
    10·1 answer
  • A 605 gram aluminum bar has the following dimensions length 0.75 m, width 0.010 m and height 0.030 m. The bar is clamp at its ce
    6·1 answer
  • 2. What characteristics does the domain Bacteria have
    14·1 answer
  • 2. A nylon cord has original length of 210 cm is pulled by a force. The change
    10·1 answer
  • How do organisms use the raw materials they ingest from the environment?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!