Which statement correctly describes the relationship between current, voltage, and resistance? If we

Physics

2 answers:

boyakko [2]3 years ago

8 0

B.
If we decrease the voltage, and do not change the resistance,
then the current will also decrease.

Salsk061 [2.6K]3 years ago

6 0

Answer: Option (b) is the correct answer.

Explanation:

According to ohm's law, the relationship between voltage, resistance, and current is that current passing through a conductor is directly proportional to the voltage over resistance.

Mathematically, I = $\frac{V}{R}$

From this relationship we can see that when we decrease the voltage, and do not change the resistance, the current will also decrease. As current is directly proportional to voltage and inversely proportional to resistance.

You might be interested in

The speed of light is 3.00 × 108 m/s in the vacuum of space. In a medium with what index of refraction would light travel slowes

Romashka [77]

Index of refraction can be calculated using the following formula:

$n=\frac{c}{v}$

where $c=3 \times 10^8 \frac{m}{s}$ in a vacuum and "n" is the index of refraction. So we must calculate our velocity by manipulating the index of refraction formula and isolate v and so:

$v=\frac{c}{n}$

We could go one by one and calculate the velocity or use logic. If you divide by a larger number the output will be a smaller number. Therefore, the answer would be n=1.62 is the slowest.

$v=\frac{3 \times 10^8 \frac{m}{s}}{1.62}= 1.85185 \times 10^8 \frac{m}{s}$

By that logic when n=1 light would travel the fastest of these four scenarios. The key thing to understand about these problems is that the speed of light slows down as it goes through a medium, in a vacuum it's 3 x 10^ 8 m/s but as it goes through say air or water light slows down.

3 0

4 years ago

Average velocity can be calculated by dividing displacement over what? NVM its change in time

dsp73

The average speed of an object is defined as the distance traveled divided by the time elapsed. Velocity is a vector quantity, and average velocity can be defined as the displacement divided by the time. Hope this answers the question. Have a nice day.

6 0

3 years ago

Mathematically, explain how a car (A) with mass of 500 kg and velocity of 2 m/s has the same kinetic energy as a car (B) with ma

scoray [572]

Answer:

Both kinetic energies are equal

Explanation:

Kinetic Energy

Is the type of energy of an object due to its state of motion. It's proportional to the mass and the square of the speed.

The equation for the kinetic energy is:

$\displaystyle K=\frac{1}{2}mv^2$