Question

Please give an answer that is coherent
A ceiling fan operates at three speeds, using 120 V of electricity from the wall. At low speeds, it uses 0.25 A. Calculate the resistance needed to generate that current. Then in 1-2 sentences, describe how the resistance would change at medium and high speeds if larger currents are needed at those speeds. Your answer should include the calculated resistance and a sentence describing your reasoning.

Answer 1

Answer:

480

Explanation:

resistance equals to potential difference divide by electric current

120÷0.25

=480

Answer 2

Answer:

$\mathsf {480 \Omega}$

Explanation:

$\textsf {Formula used for calculating resistance :}$

$\mathsf {Resistance = \frac{Voltage}{Current} }$

$\textsf {This is otherwise known as Ohm's Law, hence the unit of resistance.}$

$\textsf {Solving :}$

$\implies \mathsf {R = \frac{120}{0.25}}$

$\implies \mathsf {R = 480\Omega}$

$\textsf{If the fan uses higher current at higher speeds, then}\\\textsf{the resistance would decrease as it is inversely}\\\textsf {proportional to the current.}$