potential divider

What is the equation used for two resistors in a potential divider circuit?

• Vout = Vin × (R2 / (R1 + R2))

• Vout = Vin × (R1 / (R1 + R2))

• Vout = Vin × (R1 + R2)

• Vout = Vin / (R1 × R2)

To control the output voltage in a circuit, which component should be used?

• A fixed resistor, because it keeps the voltage constant.

• A variable potential divider, because it allows adjustment of output voltage.

• A capacitor, because it stores energy.

• A diode, because it only allows current in one direction.

Why might a potential divider be used in devices such as radios, light dimmers, and sensors?

• To control the voltage supplied to different parts of the device.

• To increase the resistance in the device.

• To decrease the current in the device.

• To store energy for backup power.

Explain how the voltage is divided between two resistors in series when one resistor has half the total resistance. Use reasoning and evidence from the example.

• The resistor with half the total resistance gets half the voltage because voltage divides in proportion to resistance.

• The resistor with half the total resistance gets all the voltage because it is smaller.

• The resistor with half the total resistance gets no voltage because it is smaller.

• The resistor with half the total resistance gets double the voltage because it is smaller.

How can the voltage output in a potential divider circuit be controlled?

• By adjusting the resistors

• By changing the battery

• By increasing the wire length

• By adding more capacitors

If you want to increase the output voltage (V_out) in a potential divider circuit, what should you do with the value of R2 relative to R1?

• Increase R2 compared to R1

• Decrease R2 compared to R1

• Keep R2 equal to R1

• Remove R2 from the circuit

Which component is used in a light dimmer to control the brightness of a bulb?

• Variable resistor

• Capacitor

• Transformer

• Diode

Describe a real-world application of a potential divider.

• Used in volume control of audio devices

• Used to power electric cars

• Used to generate solar energy

• Used to store data in computers