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
olchik [2.2K]
3 years ago
5

Which of the following would double the amount of current flowing through a piece of metal wire? Which of the following would do

uble the amount of current flowing through a piece of metal wire? Quarter the voltage across it. Quadruple the voltage across it. Double the voltage across it. Halve the voltage across it.
Physics
1 answer:
Strike441 [17]3 years ago
6 0

Answer:

Double the voltage across it.

Explanation:

From Ohm's Law, we have the relation, as follows:

Voltage = (Current)(Resistance)

If we keep the resistance of the wire as a constant, then we get the relation between voltage and current as follows:

Voltage = (Constant) * Current

Voltage α Current

This shows that the current has a direct proportionality with the voltage. So, if we want to double the current flowing through a piece of metal wire, then we must <u>Double the voltage across it.</u>

It can be confirmed by formula as:

V = IR

Now, doubling the voltage:

V' = 2 IR

substituting value of IR = V:

V' = 2 V

You might be interested in
Question on Resistance. WORTH 20 POINT
kirill [66]

From Ohm's law:  R = V / I

Resistance = (voltage) / (current)

The first paragraph TELLS you that the current is always 0.5 A, and the table tells you the voltage across each piece of wire.

Again . . .  <em>R = V / I</em>

6 0
2 years ago
Read 2 more answers
A package is dropped from a helicopter that is descending steadily at a speed v0. After t seconds have elapsed, consider the fol
qaws [65]

Answer:

Part a)

v = \sqrt{v_o^2 + g^2t^2}

Part b)

d = \frac{1}{2}gt^2

Part c)

v_f = v_o - gt

Part d)

d = \frac{1}{2}gt^2

Explanation:

Part a)

As we know that speed of package is same as that of helicopter in horizontal direction

So after time "t" the velocity in x direction will remain constant while in Y direction it will go free fall

So we have

v_y = -gt

v = \sqrt{v_x^2 + v_y^2}

v = \sqrt{v_o^2 + g^2t^2}

Part b)

Distance from helicopter is same as the distance of free fall

so we will have

d = \frac{1}{2}gt^2

Part c)

If helicopter is rising upwards with uniform speed

then final speed of the package after time t is given as

v_f = v_i + at

v_f = v_o - gt

Part d)

distance from helicopter

d = \frac{1}{2}gt^2

8 0
3 years ago
Read 2 more answers
When electromagnetic fields interact with charged particles ?
Sidana [21]
Depending on the kind of electromagnetic field, nothing will happen. 
8 0
3 years ago
What two encryption protocols are commonly used with the hypertext transfer protocol?
Ksju [112]
The two encryption protocols used in HTTP or the hypertext transfer protocol are the HTTPS and the URL. HTTPS, which stands for Hypertext Transfer Protocol Secure, is a protocol that used to encrypt the communications of a computer network. On the other hand, URL's are used as a reference of a specific web site.
8 0
2 years ago
what is the acceleration of a softball if it has a mass of 0.50 kg and hits the catcher’s glove with a force of 25 newtons
forsale [732]

Answer:

a = 50 [m/s²]

Explanation:

This type of problem can be solved using Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration.

∑F = m*a

where:

F = force =25 [N] (units of Newtons)

m = mass = 0.5 [kg]

a = acceleration [m/s²]

a=F/m\\a=25/0.5\\a= 50 [m/s^{2}]

3 0
2 years ago
Other questions:
  • Four students made a graphic organizer describing the parts of the atom.
    7·2 answers
  • (NEED HELP! +28pts and BRAINLIEST) The total energy output of a star per second is called ________. Select all that apply.
    9·2 answers
  • 2. What happens when multiple forces act on an object? (Points : 1)
    5·2 answers
  • A bottle of a certain type of salad dressing can be considered to be a mixture of olive oil and vinegar. The oil has a density o
    14·1 answer
  • Eating an orange enables a person to perform about 3.5x10^4 J of work. To what height does eating and orange enable a 55kg woman
    6·2 answers
  • "For punishment to work (i.e., to weaken the frequency of undesirable behaviors without creating a backlash), the punishment mus
    15·1 answer
  • What is the magnitude of the resultant vector? Round your answer to the nearest tenth
    12·1 answer
  • A car has an engine which delivers a constant power. It accelerates from rest at time t = 0, and at t = t0 its acceleration is a
    9·1 answer
  • La masa de un camión es de
    11·1 answer
  • Name any three natural phenomena​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!