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
disa [49]
3 years ago
8

Which statement describes the relationship of resistance and current?

Physics
2 answers:
Len [333]3 years ago
8 0
Choices 'B'; and 'D' both begin with the correct words.
But they should end with the equation

                       R = V / I 
kirill [66]3 years ago
8 0

Answer : Resistance is inversely proportional to current because R = V/I

Explanation :

Resistance is the property of a material which opposes the flow of electric current.

Mathematically, it can be written as:

R=\dfrac{\rho L}{A}

Where,

\rho is the resistivity of the material.

L is the length of the wire

A is the area of the cross section

It can be also defined using Ohm's law as :

R=\dfrac{V}{I}

Where,

V is the voltage across the terminals of the battery

I is the current flowing in the circuit.

So, it is clear that the relation between the resistance and the current is inverse.

Hence, the correct option is (b).

You might be interested in
A bullet is shot downward out of a high building with an initial speed of 10 m/s. How fast is the bullet traveling after 5 secon
serious [3.7K]

Answer:

-59

Explanation:

6 0
3 years ago
A straight wire segment 5 m long makes an angle of 30° with a uniform magnetic field of 0.37 T. Find the magnitude of the force
SIZIF [17.4K]

Answer:

The magnitude of the force on the wire is 2.68 N.

Explanation:

Given that,

Length of the wire, L = 5 m

Magnetic field, B = 0.37 T

Angle between wire and the magnetic field, \theta=30^{\circ}

Current in the wire, I = 2.9 A

We need to find the magnitude of the force on the wire. The magnetic force in the wire is given by :

F=BIL\ \sin\theta\\\\F=0.37\ T\times 2.9\ A\times 5\ m\times \ \sin(30)\\\\F=2.68\ N

So, the magnitude of the force on the wire is 2.68 N. Hence, this is the required solution.

7 0
3 years ago
If a wave has amplitude of 2 meters, a wavelength of 5 meters, and a frequency of 60 Hz, at what speed is it moving?
klemol [59]
The relationship between speed of a wave w, frequency f and wavelength \lambda is
v = \lambda f
For the wave of our problem, \lambda = 5 m and f=60 Hz, so its speed is
v=(5 m)(60 Hz)=300 m/s
5 0
4 years ago
Read 2 more answers
in loading a long lorry a man lifts boxes each of weight 100N and height of 1.5M.how much energy is transfered when one box is l
gizmo_the_mogwai [7]

Explanation:

energy=100×1.5=150 joules

4 0
3 years ago
Jack travelled 360 km at an average speed of 80 km/h. Elaine
diamong [38]

Answer:

Average speed of Elain = 60 km/h

Explanation:

Total Distance covered by Jack = 360km

Average Speed of Jack = 80 km/h

Time taken by Jack to complete his journey = Distance / Average speed = 360 km / 80 km/h

Time taken by Jack to complete his journey = 4.5 hours

As it is given the both Jack and Elain travelled the same amount of distance:

Total distance travelled by Elain = 360 km

It is given that Elain took 1.5 hourse more than Jack to cover the distance, so Time taken by Elain to cover the distance is = 4.5 hours + 1.5 hours = 6 hours

Average speed of Elain = Distance/ time = 360 km / 6 hours

Average speed of Elain = 60 km/h

3 0
3 years ago
Other questions:
  • Bicyclists in the Tour de France do enormous amounts of work during a race. For example, the average power per kilogram generate
    10·1 answer
  • K20+H2O how many total oxygen atoms are there
    13·1 answer
  • A person is driving down a country lane at 25 m/s, when a deer suddenly jumps in front of the car. The deer is 75 m ahead and wh
    10·2 answers
  • On my bike, I was able to travel 40 miles in one hour. From this information, we can determine the bike's
    10·2 answers
  • According to quantum mechanics the motions of subatomic particles may be described as
    14·1 answer
  • The visible light spectrum ranges between
    15·2 answers
  • When would the displacement technique of measuring need to be employed?
    7·1 answer
  • 10 Points
    9·2 answers
  • The pressure of a gas contained in a cylinder with a movable piston is 490 Pa. The area of the piston is 0.8 m2. Calculate the m
    13·1 answer
  • 2.) Explain why the starting angle doesnt impact the time it takes the pendulum to swing back and forth?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!