The experiment that directly determines both the sign and density of charge carriers in a sample material is the Hall-Effect experiment (D).

Here's a step-by-step explanation:

1. In the Hall-Effect experiment, a magnetic field is applied perpendicular to the direction of the electric current in a material.

2. This causes the charge carriers (either electrons or holes) to deflect to one side of the material, creating a voltage difference across the material, known as the Hall voltage.

3. The sign of the Hall voltage allows us to determine the sign of the charge carriers. If the Hall voltage is positive, the charge carriers are positive (holes). If it's negative, the charge carriers are negative (electrons).

4. The magnitude of the Hall voltage is proportional to the density of the charge carriers. By measuring the Hall voltage, we can therefore determine the density of the charge carriers in the material.

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The experiment that directly determines both the sign and density of charge carriers in a sample material is the Hall-Effect experiment (D).

Here's a step-by-step explanation:

1. In the Hall-Effect experiment, a magnetic field is applied perpendicular to the direction of the electric current in a material.

2. This causes the charge carriers (either electrons or holes) to deflect to one side of the material, creating a voltage difference across the material, known as the Hall voltage.

3. The sign of the Hall voltage allows us to determine the sign of the charge carriers. If the Hall voltage is positive, the charge carriers are positive (holes). If it's negative, the charge carriers are negative (electrons).

4. The magnitude of the Hall voltage is proportional to the density of the charge carriers. By measuring the Hall voltage, we can therefore determine the density of the charge carriers in the material.

Knowee AI · Accepted Answer

The experiment that directly determines both the sign and density of charge carriers in a sample material is the Hall-Effect experiment (D).

Here's a step-by-step explanation:

1. In the Hall-Effect experiment, a magnetic field is applied perpendicular to the direction of the electric current in a material.

2. This causes the charge carriers (either electrons or holes) to deflect to one side of the material, creating a voltage difference across the material, known as the Hall voltage.

3. The sign of the Hall voltage allows us to determine the sign of the charge carriers. If the Hall voltage is positive, the charge carriers are positive (holes). If it's negative, the charge carriers are negative (electrons).

4. The magnitude of the Hall voltage is proportional to the density of the charge carriers. By measuring the Hall voltage, we can therefore determine the density of the charge carriers in the material.

Which of the experiment directly determines both the sign and density of charge carriers in a sample material is.Question 2AnswerA.Four-Probe methodB.Band-Gap determinationC.Current-Voltage CharacteristicsD.Hall-Effect experiment

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