will you Please explain self induction?
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hey friend here is your answer^^
Self-inductance or in other words inductance of the coil is defined as the property of the coil due to which it opposes the change of current flowing through it. Inductance is attained by a coil due to the self-induced emf produced in the coil itself by changing the current flowing through it.
if the current in the coil is increasing, the self-induced emf produced in the coil will oppose the rise of current, that means the direction of the induced emf is opposite to the applied voltage
If the current in the coil is decreasing, the emf induced in the coil is in such a direction as to oppose the fall of current; this means that the direction of the self-induced emf is same as that of the applied voltage. Self-inductance does not prevent the change of current, but it delays the change of current flowing through it.
This property of the coil only opposes the changing current (alternating current) and does not affect the steady current that is (direct current) when flows through it. The unit of inductance is Henry (H).
Self-inductance or in other words inductance of the coil is defined as the property of the coil due to which it opposes the change of current flowing through it. Inductance is attained by a coil due to the self-induced emf produced in the coil itself by changing the current flowing through it.
if the current in the coil is increasing, the self-induced emf produced in the coil will oppose the rise of current, that means the direction of the induced emf is opposite to the applied voltage
If the current in the coil is decreasing, the emf induced in the coil is in such a direction as to oppose the fall of current; this means that the direction of the self-induced emf is same as that of the applied voltage. Self-inductance does not prevent the change of current, but it delays the change of current flowing through it.
This property of the coil only opposes the changing current (alternating current) and does not affect the steady current that is (direct current) when flows through it. The unit of inductance is Henry (H).
Answered by
1
Self-inductance or in other words inductance of the coil is defined as the property of the coil due to which it opposes the change of current flowing through it. Inductance is attained by a coil due to the self-induced emf produced in the coil itself by changing the current flowing through it.
If the current in the coil is increasing, the self-induced emf produced in the coil will oppose the rise of current, that means the direction of the induced emf is opposite to the applied voltage.
If the current in the coil is decreasing, the emf induced in the coil is in such a direction as to oppose the fall of current; this means that the direction of the self-induced emf is same as that of the applied voltage. Self-inductance does not prevent the change of current, but it delays the change of current flowing through it.
This property of the coil only opposes the changing current (alternating current) and does not affect the steady current that is (direct current) when flows through it. The unit of inductance is Henry (H).
Expression For Self Inductance
You can determine the self-inductance of a coil by the following expression
The above expression is used when the magnitude of self-induced emf (e) in the coil and the rate of change of current (dI/dt) is known.
Putting the following values in the above equations as e = 1 V, and dI/dt = 1 A/s then the value of Inductance will be L = 1 H.
Hence, from the above derivation, a statement can be given that a coil is said to have an inductance of 1 Henry if an emf of 1 volts is induced in it when the current flowing through it changes at the rate of 1 Ampere/second.
The expression for Self Inductance can also be given as
where,
N – number of turns in the coil
Φ – magnetic flux
I – current flowing through the coil
From the above discussion, the following points can be drawn about Self Inductance
The solenoid has large self-inductance.
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The value of the inductance will be high if the magnetic flux is stronger for the given value of current.
The value of the Inductance also depends upon the material of the core and the number of turns in the coil or solenoid.
The higher will be the value of the inductance in Henry, the rate of change of current will be lower.
1 Henry is also equal to 1 Weber/ampere......
.........
Hope it helps you........
Pls. Mark as Brainliast........
If the current in the coil is increasing, the self-induced emf produced in the coil will oppose the rise of current, that means the direction of the induced emf is opposite to the applied voltage.
If the current in the coil is decreasing, the emf induced in the coil is in such a direction as to oppose the fall of current; this means that the direction of the self-induced emf is same as that of the applied voltage. Self-inductance does not prevent the change of current, but it delays the change of current flowing through it.
This property of the coil only opposes the changing current (alternating current) and does not affect the steady current that is (direct current) when flows through it. The unit of inductance is Henry (H).
Expression For Self Inductance
You can determine the self-inductance of a coil by the following expression
The above expression is used when the magnitude of self-induced emf (e) in the coil and the rate of change of current (dI/dt) is known.
Putting the following values in the above equations as e = 1 V, and dI/dt = 1 A/s then the value of Inductance will be L = 1 H.
Hence, from the above derivation, a statement can be given that a coil is said to have an inductance of 1 Henry if an emf of 1 volts is induced in it when the current flowing through it changes at the rate of 1 Ampere/second.
The expression for Self Inductance can also be given as
where,
N – number of turns in the coil
Φ – magnetic flux
I – current flowing through the coil
From the above discussion, the following points can be drawn about Self Inductance
The solenoid has large self-inductance.
Related Terms:
1 Comment
Leave a Reply
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Why is this happening to me?
Privacy - Terms
Related Terms
Mutual Inductance
Self Induced EMF
Mutually Induced EMF
Magnetic Hysteresis
Induced EMF
Coefficient Of Coupling
Inductance
Magnetomotive Force
Magnetic Permeability
Permeance
Common Terms
Synchronous Machine
Regenerative Braking
Thevenin’s Theorem
Auto Transformer
Armature Winding
DC Machine
RLC Series Circuit
RS Flip Flop
Power Triangle
Parallel Resonance
Most Searched Terms
Star Delta Starter
Peak Value, Average Value and RMS Value
Active, Reactive and Apparent Power
Electrical Bus-Bar and its Types
Emf Equation of a DC Generator
Electrical Earthing
Two Wattmeter Method of Power Measurement
Reciprocity Theorem
Eddy Current Loss
Excitation System
New Additions
Difference Between Transducer & Inverse Transducer
Difference Between AC & DC Bridge
Electrostatic Instrument
Synchroscope
Temperature Transducer
Difference Between Moving Iron & Moving Coil Instrument
Frequency
Difference Between AC & DC Voltage
Rectifier Ammeter
Difference Between AC & DC Transmission Line
Categories
Circuit Theory
Comparisons
DC Machines
Electrical Drives
Electrical Instrumentation
Electrical Machines
Electrical Measurement
Electrical Terms
Electronic Instrumentation
Electronic Terms
Induction Motor
Magnetic Circuit
Power Systems
Special Machines
Switchgear and Protection
Synchronous Machines
Transformer
Contact Us Self Inductance
The value of the inductance will be high if the magnetic flux is stronger for the given value of current.
The value of the Inductance also depends upon the material of the core and the number of turns in the coil or solenoid.
The higher will be the value of the inductance in Henry, the rate of change of current will be lower.
1 Henry is also equal to 1 Weber/ampere......
.........
Hope it helps you........
Pls. Mark as Brainliast........
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