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What will be the stored energy by a 100 mH inductor when 1 A current is flowing through it?
0.001 J
0.01 J
0.05 J
0.005 J
0.05 J
The energy stored in an inductor is proportional to the square of the current flowing through it. Given an inductance of 100┬аmH (0.1┬аH) and a current of 1┬аA, the calculation yields 0.05┬аJ.
The energy stored in an inductor is proportional to the square of the current flowing through it. Given an inductance of 100┬аmH (0.1┬аH) and a current of 1┬аA, the calculation yields 0.05┬аJ.
E=21тАЛLI2 тАФ Formula for energy stored in an inductor in Joules
L=100┬аmH=0.1┬аH тАФ Unit conversion for inductance
When current flows through an inductor, it generates a magnetic field. The energy is stored within this magnetic field established by the flow of charge, and it remains stored as long as the current is maintained.
Inductor stores energy in the form of a magnetic field.
Energy is independent of the rate of change of current, provided the final steady state current is known.
The SI unit for stored energy is Joules (J).
Energy can be recovered when the current is interrupted
Acts as an energy buffer in switching converters
Subject to resistive losses (I2R) in practical wire coils
Magnetic saturation limits total energy capacity
DC-DC Power Converters
Electromagnetic relays and energy storage systems
Calculation: E=0.5├Ч0.1├Ч(1)2=0.05┬аJ.
Option A, B, and D are incorrect based on the standard energy formula derivation.
C is correct тАФ The energy stored is calculated as 21тАЛ├Ч0.1┬аH├Ч(1┬аA)2=0.05┬аJ.
Always ensure units are consistent; convert milli-Henries (mH) to Henries (H) by multiplying by 10тИТ3 before calculation.
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