Materials having resistance changes as voltage or current varies are called:

1 answer:

8 0

I believe they are called nonohmic materials. According to ohms law the current trough a current carrying conductor is directly proportional to the potential difference (voltage) at a constant resistance. Non-ohmic conductors or materials are those materials that do not obey the ohms law, their resistance increases as the current increases. Ohmic materials are those that obeys the ohms law such that the voltage and current are proportional- doubling the potential difference doubles the current.

You might be interested in

If a CD player uses a 12-V battery and draws 2.0 amps of current, how much power does it use?

IgorC [24]

Answer:

The power is 24 watt .

Explanation:

Given that,

Voltage V= 12-V

Current I = 2.0 A

Using ohm's law

The current is directly proportional to the voltage.

In form of power,

The power is the product of the Current and voltage.

Formula of the power is defined as,

$P = I\times V$

$P = 2.0\times12$

$P = 24\ watt$

Hence, The power is 24 watt .

4 0

2 years ago

Who could explain the phenomenom of interference of light?

Likurg_2 [28]

Answer:

When the waves reflected from the inner and outer surface combine they will interfere with each other, removing or reinforcing some parts of white light by destructive or constructive interference. ... This results in color.

Explanation:

this is what we studied

so basically there is like a surface

and 2 different waves coming out of the same source

they will combine and start removing parts of the white light (which originally consists of 6 to 7 colors)

results in showing these colors

6 0

2 years ago

A ball is dropped from the top of a tall building. As the ball falls, the upward force of air rsistance becomes equal to the dow

iren [92.7K]

Fall at a constant speed

5 0