Respuesta :

MathPhys

Answer:

1/4

Explanation:

P = IV, and V = IR, so P = I²R.

If R is held constant, and I is cut in half, then power becomes:

P = (I/2)²R

P = 1/4 I²R

So the power reduces by a factor of 4.

The resistor change 1/4

P = IV, and V = IR, so P = I²R.

If R is held constant, and I is cut in half, then power becomes:

P = (I/2)²R

P = 1/4 I²R

So the power reduces by a factor of 4.

How does the resistance of the resistor exchange?

The resistance of all substances modifications to their temperature modifications. If the temperature is diminished, resistance (commonly) declines. In fact, if cooled sufficiently, the material becomes a "superconductor" without huge resistance. Increasing the temperature (normally) will increase resistance.

If you boom the wide variety of lamps in a sequence circuit, there will be less modern-day. The lamps resist modern-day, so in case you placed extra lamps into the circuit, there may be more resistance. You can increase or lower the resistance in a circuit through the usage of a variable resistor.

Learn more about the resistor change here https://brainly.com/question/25997303

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