Question
Download Solution PDFThe Oersted unit is used to measure which of the following?
This question was previously asked in
RPF Constable 2024 Official Paper (Held On 05 Mar, 2025 Shift 3)
Answer (Detailed Solution Below)
Option 3 : Magnetic field strength
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RPF Constable Full Test 1
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Detailed Solution
Download Solution PDFThe Correct answer is Magnetic field strength.
Key Points
- The Oersted (Oe) is a unit of measurement for magnetic field strength, also known as magnetic intensity.
- It is named after Hans Christian Ørsted, a Danish physicist and chemist who discovered the relationship between electricity and magnetism in 1820.
- One Oersted corresponds to the strength of a magnetic field that exerts a force of 1 dyne per unit magnetic pole.
- The Oersted is a unit in the CGS (centimeter-gram-second) system of units, which is commonly used in physics.
- In modern SI units, magnetic field strength is typically measured in amperes per meter (A/m), but the Oersted is still used in certain contexts, particularly in magnetism-related studies.
- The Oersted is closely associated with the fundamental concept of the interaction between electric currents and magnetic fields, a cornerstone of electromagnetism.
- Applications of magnetic field strength measurement include studying the behavior of magnets, designing electrical motors, generators, and other devices relying on magnetic properties.
Additional Information
- Electric field strength
- Electric field strength is a measure of the force experienced by a unit positive charge in an electric field.
- It is measured in volts per meter (V/m) in SI units.
- Electric fields arise from electric charges and are used in applications such as capacitors, transmission lines, and electromagnetic waves.
- Electric potential
- Electric potential refers to the amount of work needed to move a unit positive charge from a reference point to a specific point within an electric field.
- It is measured in volts (V).
- Electric potential is crucial in understanding energy transformations in batteries, circuits, and power systems.
- Current intensity
- Current intensity, commonly referred to as electric current, measures the rate of flow of electric charge.
- It is measured in amperes (A).
- Electric current is fundamental to all modern electrical devices and systems, such as lighting, communication systems, and industrial machinery.
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