Answer
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Hint: The galvanometer is the electrical instrument or the electrical device which used to find the presence of the current in the circuit. The ammeter is the electrical instrument or the electrical device which used to find the amount of the current in the circuit.
Complete step by step solution:
Galvanometer:
The galvanometer is the device which is used to find the small amount of the electric current or to measure its magnitude or the presence of the current in the circuit. The presence of the current in the circuit is indicated by the magnetic needle which is present inside the galvanometer. The magnetic needle is the most important part of the galvanometer because it shows the presence of the current, if the galvanometer fails to show the presence of the current, it leads to the big problem of the user of the circuit. In this the magnetic needle is placed between the two magnets, when the current passes through the circuit, the magnetic needle gets some magnetic field and moves either right side or the left side. The movement of the magnetic needle is directly proportional to the current.
Ammeter:
An ammeter is the device which is used to determine the amount of the current which flows in the circuit. It shows the magnitude of the current which flows in the circuit. The working of the ammeter is the same as the working of the galvanometer. It also uses the magnetic needle to show the magnitude of the current in the circuit. The values scale is marked in the meter, then the magnetic needle moves, so that the exact current values can be determined.
The galvanometer can be converted to the ammeter by connecting the low resistance in parallel with the galvanometer, so that the combined galvanometer and low resistance in parallel can be called as ammeter.
Note: When the low resistance is connected in parallel with the galvanometer, the small amount of the current flows through the galvanometer, the large amount of the current flows through the low resistance, when the small amount of the current flows through the galvanometer, it acts as an ammeter.
Complete step by step solution:
Galvanometer:
The galvanometer is the device which is used to find the small amount of the electric current or to measure its magnitude or the presence of the current in the circuit. The presence of the current in the circuit is indicated by the magnetic needle which is present inside the galvanometer. The magnetic needle is the most important part of the galvanometer because it shows the presence of the current, if the galvanometer fails to show the presence of the current, it leads to the big problem of the user of the circuit. In this the magnetic needle is placed between the two magnets, when the current passes through the circuit, the magnetic needle gets some magnetic field and moves either right side or the left side. The movement of the magnetic needle is directly proportional to the current.
Ammeter:
An ammeter is the device which is used to determine the amount of the current which flows in the circuit. It shows the magnitude of the current which flows in the circuit. The working of the ammeter is the same as the working of the galvanometer. It also uses the magnetic needle to show the magnitude of the current in the circuit. The values scale is marked in the meter, then the magnetic needle moves, so that the exact current values can be determined.
The galvanometer can be converted to the ammeter by connecting the low resistance in parallel with the galvanometer, so that the combined galvanometer and low resistance in parallel can be called as ammeter.
Note: When the low resistance is connected in parallel with the galvanometer, the small amount of the current flows through the galvanometer, the large amount of the current flows through the low resistance, when the small amount of the current flows through the galvanometer, it acts as an ammeter.
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