Elektronika Dasar 003 Resistor 03 Universitas Jember

Summary

In this video, the presenter demonstrates how to use a digital multimeter for various measurements. The multimeter is used to measure resistance (Ohms), frequency, voltage (AC and DC), and temperature. The presenter also explains how to measure current, capacitance, and check diodes. Practical demonstrations include measuring resistors (1k Ohm and 3k Ohm) using a project board, displaying the results of series and parallel connections, and explaining tolerance variations in measurements. The video aims to educate viewers on effectively using a multimeter for basic electronic measurements.

Takeaways

• 😀 A digital multimeter is used to measure resistance, voltage, current, frequency, and temperature.
• 😀 The multimeter has different settings to measure Ohms, hFE of transistors, AC and DC voltage, and more.
• 😀 The multimeter can measure both AC and DC current, with options for high or low amperage (up to 20A).
• 😀 The multimeter includes a function to measure capacitance, with settings for various capacitor sizes (e.g., 2nF, 20nF, 200nF, etc.).
• 😀 The diode function on the multimeter is used to test continuity or whether the component is connected.
• 😀 A breadboard (project board) is used for circuit assembly without soldering, making it easy to test components.
• 😀 Resistors are used to test resistance values; the script demonstrates using a 1kΩ and 3kΩ resistor.
• 😀 When measuring resistors, the multimeter shows values slightly off from the nominal resistance due to tolerance (e.g., 1kΩ measures as 0.99kΩ).
• 😀 Connecting resistors in series adds their values (e.g., 1kΩ + 3kΩ = 3.95kΩ).
• 😀 When connecting resistors in parallel, their combined resistance is less than the individual resistances, as shown by the parallel combination of 1kΩ and 3kΩ (0.74kΩ).

Q & A

What is the purpose of the digital multimeter in this demonstration?

The digital multimeter is used for measuring various electrical properties such as resistance (Ohms), frequency, voltage (both AC and DC), temperature (Celsius), and capacitance.

What are the main components used in this practical experiment?

The main components used are a digital multimeter, a project board (breadboard), and two resistors with values of 1kΩ and 3kΩ.

How do you set the multimeter to measure resistance?

To measure resistance, you select the resistance mode on the multimeter (marked as 'Ω') and choose an appropriate range based on the resistor values you are measuring.

What does the multimeter show when measuring the 1kΩ resistor?

When measuring the 1kΩ resistor, the multimeter shows 0.99kΩ, which is slightly less than 1kΩ due to the resistor's tolerance.

What happens when the 1kΩ and 3kΩ resistors are connected in series?

When the 1kΩ and 3kΩ resistors are connected in series, the total resistance becomes approximately 3.95kΩ.

What is the result when the 1kΩ and 3kΩ resistors are connected in parallel?

When the 1kΩ and 3kΩ resistors are connected in parallel, the total resistance is approximately 0.74kΩ.

Why do resistors in parallel result in a lower total resistance?

In parallel circuits, the total resistance is always lower than the lowest individual resistor because the current has multiple paths to flow through, effectively reducing the overall opposition to the current.

How does the project board (breadboard) assist in this experiment?

The project board (breadboard) allows easy connections of electrical components without the need for soldering, making it convenient for quick experiments and measurements.

What does the multimeter display when measuring the 3kΩ resistor?

When measuring the 3kΩ resistor, the multimeter shows 2.96kΩ, which is slightly less than the expected value due to tolerance.

What is the significance of resistor tolerances in this experiment?

Resistor tolerances indicate the allowable deviation from the nominal value of the resistor. In this experiment, the slight differences in the readings (e.g., 0.99kΩ instead of 1kΩ) are due to these tolerances.