Soal Prakarya Akhir

Tembaga adalah bahan yang tepat digunakan untuk menghantarkan listrik. Hal ini dikarenakan tembaga memiliki sifat konduktivitas listrik yang tinggi. Dalam keadaan padat, atom-atom tembaga memiliki elektron bebas yang dapat bergerak dengan mudah, sehingga memungkinkan aliran listrik melalui bahan tersebut. Sifat konduktivitas listrik yang tinggi membuat tembaga menjadi pilihan yang baik sebagai bahan penghantar listrik dalam berbagai aplikasi, seperti kabel listrik dan komponen elektronik.

The correct answer is "baterai" (battery). This is because a flashlight or senter lamp requires an energy source to produce light, and batteries are commonly used as a portable and convenient source of energy for such devices.

The correct answer is "on off". This suggests that the lamp in the house can be turned on and off using a switch.

The given answer, KWH meter, is the correct option because it is mentioned in the question that the PLN recorder regularly visits and records numbers. A KWH meter is a device used to measure the amount of electrical energy consumed by a household or business. Therefore, it is logical to assume that the PLN recorder would be recording the numbers from the KWH meter during their monthly visits.

The arrow in the picture is pointing to the negative terminal of the battery. This indicates that the terminal has an excess of electrons, making it negatively charged.

Listrik memiliki banyak manfaat bagi kehidupan manusia, seperti sebagai penerangan, sumber energi, dan membantu fungsi alat elektronik lain. Namun, listrik tidak dapat menambah penghasilan manusia secara langsung. Listrik dapat digunakan untuk menjalankan alat-alat atau mesin yang dapat meningkatkan efisiensi dan produktivitas dalam pekerjaan, tetapi penghasilan yang diperoleh masih bergantung pada hasil kerja manusia itu sendiri.

The correct answer is b because in the given image, there are two resistors connected in parallel. In a parallel circuit, the current has multiple paths to flow through. This can be identified by the fact that both resistors have one end connected to a common point and the other end connected to a different common point.

The correct answer is "hitam atau merah." Warna isolasi kabel yang memiliki arus listrik adalah hitam atau merah. Ini karena warna-warna ini umumnya digunakan untuk mengidentifikasi kabel yang membawa arus listrik. Hitam sering digunakan untuk mengidentifikasi kabel netral, sementara merah digunakan untuk mengidentifikasi kabel yang membawa arus listrik yang berbahaya.

The cable that is connected to the ground is called a ground cable.

The correct answer is "paralel." In a parallel circuit, each electrical component is connected to the same two points of the circuit, allowing for multiple pathways for the current to flow. This means that if one lamp in the circuit fails, the other lamps will still continue to work. This is the most common type of circuit used in homes because it provides more flexibility and reliability compared to a series circuit where all the components are connected in a single loop.

The correct answer is 1 dengan B, 2 dengan A, 3 dengan C, dan 4 dengan D. This is because the table shows the components of electrical devices and their corresponding functions. The correct pairing is based on matching the component with its correct function.

The correct answer is 1,5 v because it is the only option that matches the grammatical structure of the sentence. The sentence states that the battery has a voltage of ".... Volt." The only option that completes this sentence correctly is "1,5 v."

The correct answer is Option 2 because it is not possible to determine the answer without seeing the images of the electronic devices. The text description does not provide enough information to determine which device uses the most electricity.

When we exceed the power capacity provided in our home, the circuit breaker or fuse will trip, cutting off the electrical flow. This is a safety measure to prevent overheating and potential fire hazards. Therefore, the correct answer is that the circuit breaker or fuse will disconnect the electrical flow.

The blue cable isolation in the picture is negatively charged.

The circuit in the picture is an example of a parallel circuit. In a parallel circuit, the components are connected in such a way that there are multiple paths for the current to flow. This means that the current is divided among the different branches of the circuit. In the given picture, it can be observed that there are multiple branches with components connected across the same two points, indicating a parallel arrangement.

The correct answer is "stop kontak". In Indonesian, "stop kontak" refers to the electrical outlet or socket where plugs are inserted to connect to the electrical current. This term is commonly used to describe the device that provides the connection point for electrical appliances or devices to receive power.

The given answer states that the electrical current in the cable is flowing from the positive terminal (1 Positif) towards the ground (2 ground) and then towards the negative terminal (3 negatif).

In a parallel circuit, the energy sources are arranged in a sequential manner. This means that each energy source is connected to the same two points in the circuit, creating multiple paths for the current to flow. This arrangement allows for the division of current among the different energy sources, resulting in a higher overall current capacity.

The switch for public lighting should be placed near the door. This is because placing it near the door allows for easy access and convenience when entering or leaving the area. Additionally, having the switch near the door ensures that the lights can be easily turned on or off upon entering or exiting the space, promoting energy efficiency.

The electrical device in the picture functions as a current limiter or current regulator. It controls the flow of electric current in a circuit, preventing it from exceeding a certain limit. This is important for protecting the circuit and the electrical components from damage caused by excessive current.

The correct answer is "searah" because direct current (DC) is an electric current that flows in one direction only, without changing its direction periodically. Unlike alternating current (AC), which changes direction periodically, DC has a constant and steady flow in one direction. Therefore, the answer "searah" accurately describes the nature of direct current.

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The correct answer is "Daya listrik lampu adalah 10 W". This is because the given information states that the lamp has a power rating of 10W. The power of an electrical device is measured in watts (W), and in this case, the lamp has a power rating of 10 watts.

The given options are all materials required for a simple electrical installation except for the "stop kontak" which translates to "power outlet" in English. Power outlets are not necessary for the installation process itself but are required for connecting electrical devices to the installed system.

The correct answer is 3 because it is the only number in the given options that is shown in the image. The image shows four numbers, and the number 3 is the only one that is visible. Therefore, 3 is the correct answer.

The correct answer is "Baterai". In a simple electrical installation, batteries are used as a source of electrical energy to power lamps and other electronic devices. Batteries store chemical energy and convert it into electrical energy, which can then be used to supply power to electrical appliances. This makes batteries a convenient and portable option for providing electricity in situations where a direct connection to a power grid or generator is not available.

The correct answer is "Bebas boleh tertukar" which means "Free can be swapped". This suggests that the items or components in the picture can be interchanged or switched without any specific order or requirement.

Rangkaian seri ditandai dengan ciri-ciri bahwa semua komponen mendapatkan tegangan yang sama dan disusun secara berurutan. Pernyataan nomor 1 "Membutuhkan kabel banyak" tidak relevan dengan ciri-ciri rangkaian seri, sehingga tidak termasuk dalam ciri-ciri rangkaian seri yang tepat.

A sekring is a device used to protect electrical circuits from excessive current flow. It acts as a safety measure by breaking the circuit when there is an overload or short circuit, preventing damage to the electrical system and potential hazards such as fires. Unlike a sakelar (switch) or steker (plug) which are used to control the flow of electricity, a sekring is specifically designed to interrupt the current in case of a fault. Therefore, sekring is the correct answer for the given question.