Soal Latihan Hukum Ohm

1. Untuk resistensi (R) yang tetap, jika tegangan (V) yang diberikan ke rangkaian dinaikkan, arus listrik (I) yang mengalir akan bertambah banyak.

True

False

According to Ohm's law, the current flowing through a circuit is directly proportional to the voltage applied across it, given that the resistance remains constant. Therefore, if the voltage is increased, the current flowing through the circuit will also increase. This is why the statement is true.

Explanation

According to Ohm's law, the current flowing through a circuit is directly proportional to the voltage applied across it, given that the resistance remains constant. Therefore, if the voltage is increased, the current flowing through the circuit will also increase. This is why the statement is true.

2. Salah satu syarat agar arus listrik dapat mengalir dalam suatu hambatan tertutup adalah...

Terdapat hambatan

Terdapat beda potensial di antara dua titik.

Dipasang sakelar.

Dipasang sumber tegangan sehingga potensialnya menjadi sama.

To allow electric current to flow in a closed circuit, there must be a potential difference (or voltage) between two points. This potential difference creates an electric field that pushes the charged particles (electrons) through the circuit, causing the flow of electric current. Without a potential difference, there would be no driving force for the electrons to move, and thus no current would flow. Therefore, the presence of a potential difference between two points is a necessary condition for electric current to flow in a closed circuit.

Explanation

To allow electric current to flow in a closed circuit, there must be a potential difference (or voltage) between two points. This potential difference creates an electric field that pushes the charged particles (electrons) through the circuit, causing the flow of electric current. Without a potential difference, there would be no driving force for the electrons to move, and thus no current would flow. Therefore, the presence of a potential difference between two points is a necessary condition for electric current to flow in a closed circuit.

3. Pasangkanlah pernyataan berikut dengan jawaban yang tepat!

banyaknya muatan listrik dalam satuan waktu.

perbandingan antara tegangan listrik dari suatu komponen elektronik (misalnya resistor) dengan arus listrik yang melewatinya

perbedaan potensi listrik antara dua titik dalam rangkaian listrik

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4. Arus listrik mengalir dari ujung penghantar dengan potensial _____ ke potensial _____.

The correct answer is "tinggi, rendah" because electrical current flows from a higher potential to a lower potential.

Explanation

The correct answer is "tinggi, rendah" because electrical current flows from a higher potential to a lower potential.

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5. Pernyataan yang tidak sesuai dengan Hukum Ohm yaitu...

Sumber tegangan tidak mempengaruhi nilai arus listrik.

Semakin besar nilai sumber tegangan, maka semakin kecil pula jumlah arus yang mengalir.

Jika tidak terdapat beda potensial, arus listrik tetap dapat mengalir pada rangkaian.

Jika hambatan diperbesar, maka aliran arus yang mengalir pada rangkaian akan bertambah.

The statement "Semakin besar nilai sumber tegangan, maka semakin kecil pula jumlah arus yang mengalir" is not in accordance with Ohm's Law. According to Ohm's Law, the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor. Therefore, if the voltage increases, the current should also increase, not decrease. Similarly, the statement "Jika hambatan diperbesar, maka aliran arus yang mengalir pada rangkaian akan bertambah" is also incorrect. According to Ohm's Law, if the resistance increases, the current should decrease, not increase.

Explanation

The statement "Semakin besar nilai sumber tegangan, maka semakin kecil pula jumlah arus yang mengalir" is not in accordance with Ohm's Law. According to Ohm's Law, the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor. Therefore, if the voltage increases, the current should also increase, not decrease. Similarly, the statement "Jika hambatan diperbesar, maka aliran arus yang mengalir pada rangkaian akan bertambah" is also incorrect. According to Ohm's Law, if the resistance increases, the current should decrease, not increase.

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