Class 10 Exam > Class 10 Questions > A galvanometer is used toa)Measure potential ...
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A galvanometer is used to
- a)Measure potential difference
- b)Detect direction of current
- c)Measure amount of current flowing
- d)Measure electric power of the circuit
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
A galvanometer is used toa)Measure potential differenceb)Detect direct...
A galvanometer is a type of ammeter. It is an instrument for detecting and measuring electric current. It is an analog electromechanical transducer that produces a rotary deflection, through a limited arc, in response to electric current flowing through its coil.
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A galvanometer is used toa)Measure potential differenceb)Detect direct...
Explanation:
A galvanometer is an instrument used to detect the direction of current flowing through a circuit. It is based on the principle of electromagnetic induction.
Working Principle of a Galvanometer:
A galvanometer consists of a coil of wire wound around a movable spindle, which is placed between the poles of a permanent magnet. When an electric current flows through the coil, it produces a magnetic field that interacts with the magnetic field of the permanent magnet.
Deflection of the Galvanometer:
When a current flows through the coil, the interaction between the magnetic fields causes a force to be exerted on the coil. This force causes the coil to rotate around its spindle. The amount of rotation depends on the strength of the current flowing through the coil.
Detecting the Direction of Current:
The coil of a galvanometer is usually connected in series with a resistor called a shunt. When a current flows through the galvanometer, it produces a deflection on the scale. The direction of the deflection indicates the direction of the current.
If the current flows in one direction, the coil will rotate in one direction, causing the pointer to move in one direction on the scale. If the current flows in the opposite direction, the coil will rotate in the opposite direction, causing the pointer to move in the opposite direction on the scale.
Measuring the Amount of Current:
The deflection of the galvanometer is directly proportional to the amount of current flowing through it. By calibrating the scale of the galvanometer, we can determine the amount of current based on the deflection of the pointer.
Conclusion:
Therefore, a galvanometer is primarily used to detect the direction of current flowing through a circuit. While it can indirectly measure the amount of current, its main purpose is to provide a visual indication of the current's direction.
A galvanometer is an instrument used to detect the direction of current flowing through a circuit. It is based on the principle of electromagnetic induction.
Working Principle of a Galvanometer:
A galvanometer consists of a coil of wire wound around a movable spindle, which is placed between the poles of a permanent magnet. When an electric current flows through the coil, it produces a magnetic field that interacts with the magnetic field of the permanent magnet.
Deflection of the Galvanometer:
When a current flows through the coil, the interaction between the magnetic fields causes a force to be exerted on the coil. This force causes the coil to rotate around its spindle. The amount of rotation depends on the strength of the current flowing through the coil.
Detecting the Direction of Current:
The coil of a galvanometer is usually connected in series with a resistor called a shunt. When a current flows through the galvanometer, it produces a deflection on the scale. The direction of the deflection indicates the direction of the current.
If the current flows in one direction, the coil will rotate in one direction, causing the pointer to move in one direction on the scale. If the current flows in the opposite direction, the coil will rotate in the opposite direction, causing the pointer to move in the opposite direction on the scale.
Measuring the Amount of Current:
The deflection of the galvanometer is directly proportional to the amount of current flowing through it. By calibrating the scale of the galvanometer, we can determine the amount of current based on the deflection of the pointer.
Conclusion:
Therefore, a galvanometer is primarily used to detect the direction of current flowing through a circuit. While it can indirectly measure the amount of current, its main purpose is to provide a visual indication of the current's direction.
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Community Answer
A galvanometer is used toa)Measure potential differenceb)Detect direct...
It is not like ammeter it is used to detect that current is flowing through circuit or not it can deflect in both directions if u like follow me
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A galvanometer is used toa)Measure potential differenceb)Detect direction of currentc)Measure amount of current flowingd)Measure electric power of the circuitCorrect answer is option 'B'. Can you explain this answer?
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