select all the correct answers. janet installed a dimmer on the lights in her bedroom. she slid the dimmer…

select all the correct answers. janet installed a dimmer on the lights in her bedroom. she slid the dimmer switch up, causing the resistance in the circuit to decrease. assuming the voltage is constant, what effect will janets actions have on the circuit? the voltage will increase from 120 to 240 volts. the lights will brighten. the current will decrease. the current will increase. the lights will dim.

select all the correct answers. janet installed a dimmer on the lights in her bedroom. she slid the dimmer switch up, causing the resistance in the circuit to decrease. assuming the voltage is constant, what effect will janets actions have on the circuit? the voltage will increase from 120 to 240 volts. the lights will brighten. the current will decrease. the current will increase. the lights will dim.

Answer

Explanation:

Step1: Recall Ohm's Law

Ohm's Law is $I=\frac{V}{R}$, where $I$ is current, $V$ is voltage and $R$ is resistance.

Step2: Analyze the change in current

Given that $V$ is constant and $R$ decreases. According to $I = \frac{V}{R}$, when the denominator $R$ decreases and the numerator $V$ is fixed, the value of $I$ (current) will increase.

Step3: Analyze the brightness of the lights

The power of the light - bulb is $P = VI$. Since $V$ is constant and $I$ increases, $P$ increases. A higher - power light - bulb is brighter.

Answer:

The lights will brighten., The current will increase.