Newton per coulomb is the SI unit of ___________.
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A.
magnetic field
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B.
magnetic potential
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C.
electric potential
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D.
electric field
Correct Answer:
D. electric field
Explanation:
The electric field is defined as the electric force exerted per unit of charge. Mathematically, this is expressed by the formula E = F / q, where E represents the electric field, F is the force in newtons (N), and q is the charge in coulombs (C). Consequently, the standard SI unit for the electric field is the newton per coulomb (N/C). Additionally, the electric field can be described as the negative gradient of electric potential, which is measured in volts per meter (V/m). These two units are equivalent and both are recognized as SI units for electric field intensity. Therefore, based on the provided options where newton per coulomb is identified as the SI unit, the correct answer is electric field.
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