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When 2 inductors share the same magnetic field they become coupled and besides their self inductance they have a mutual inductance as well. For this circuit: Now current entering one coil marke...
Answer
#4: Post edited
- When 2 inductors share the same magnetic field they become coupled and besides their self inductance they have a mutual inductance as well.
- For this circuit:
- ![](https://electrical.codidact.com/uploads/9BbSeaQgDrCoxDMhzybYnxP9)
Now current entering one coil marked with a dot , produces a current exitting the couple coil at its dotting end.In L1 current enters from the dotted end so this creates a current which exits from the dotted end of L2 and in L2 current enters from the dotted end so this again creates a current which exits from the dotted end of L1 so we get 2 voltage drops from self inductance of each coil and 2 voltage drops from the mutual inductance of the coupled coils.- ![I](https://electrical.codidact.com/uploads/9rF1TGmSbyjXheyYbaf81p3z)
- so that is translated to this equation:
- ![](https://electrical.codidact.com/uploads/emSsaAC41ngoDAQM1JsoPyNq)
- Now obviously :
- ![](https://electrical.codidact.com/uploads/UGnT3PZrtT6aqkMHLrsnwmdq)
- The total inductance of the circuit becomes ![](https://electrical.codidact.com/uploads/vdsK3wj6wSQYEpeKCPvXCnpv)
the value of the mutual inductance is:(with k=1)- ![](https://electrical.codidact.com/uploads/X3znhTfjLipcUBHdWcQUfpv4)
$L_{T}=4H$- and the equation of current of this circuit becomes
- ![](https://electrical.codidact.com/uploads/6q6XKefrqD8ZUzYHqmJNcKox)
- When 2 inductors share the same magnetic field they become coupled and besides their self inductance they have a mutual inductance as well.
- For this circuit:
- ![](https://electrical.codidact.com/uploads/9BbSeaQgDrCoxDMhzybYnxP9)
- Now current entering one coil marked with a dot, produces a current exiting the couple coil at its dotting end. In L1 current enters from the dotted end so this creates a current which exits from the dotted end of L2 and in L2 current enters from the dotted end so this again creates a current which exits from the dotted end of L1 so we get 2 voltage drops from self inductance of each coil and 2 voltage drops from the mutual inductance of the coupled coils.
- ![I](https://electrical.codidact.com/uploads/9rF1TGmSbyjXheyYbaf81p3z)
- so that is translated to this equation:
- ![](https://electrical.codidact.com/uploads/emSsaAC41ngoDAQM1JsoPyNq)
- Now obviously :
- ![](https://electrical.codidact.com/uploads/UGnT3PZrtT6aqkMHLrsnwmdq)
- The total inductance of the circuit becomes ![](https://electrical.codidact.com/uploads/vdsK3wj6wSQYEpeKCPvXCnpv)
- the value of the mutual inductance is: (with k=1)
- ![](https://electrical.codidact.com/uploads/X3znhTfjLipcUBHdWcQUfpv4)
- $L_{T}=4 \text{H}$
- and the equation of current of this circuit becomes
- ![](https://electrical.codidact.com/uploads/6q6XKefrqD8ZUzYHqmJNcKox)
#3: Post edited
- When 2 inductors share the same magnetic field they become coupled and besides their self inductance they have a mutual inductance as well.
- For this circuit:
- ![](https://electrical.codidact.com/uploads/9BbSeaQgDrCoxDMhzybYnxP9)
- Now current entering one coil marked with a dot , produces a current exitting the couple coil at its dotting end.In L1 current enters from the dotted end so this creates a current which exits from the dotted end of L2 and in L2 current enters from the dotted end so this again creates a current which exits from the dotted end of L1 so we get 2 voltage drops from self inductance of each coil and 2 voltage drops from the mutual inductance of the coupled coils.
- ![I](https://electrical.codidact.com/uploads/9rF1TGmSbyjXheyYbaf81p3z)
- so that is translated to this equation:
- ![](https://electrical.codidact.com/uploads/emSsaAC41ngoDAQM1JsoPyNq)
- Now obviously :
- ![](https://electrical.codidact.com/uploads/UGnT3PZrtT6aqkMHLrsnwmdq)
so the total inductance of the circuit becomes ![](https://electrical.codidact.com/uploads/vdsK3wj6wSQYEpeKCPvXCnpv)- the value of the mutual inductance is:(with k=1)
- ![](https://electrical.codidact.com/uploads/X3znhTfjLipcUBHdWcQUfpv4)
- and the equation of current of this circuit becomes
- ![](https://electrical.codidact.com/uploads/6q6XKefrqD8ZUzYHqmJNcKox)
- When 2 inductors share the same magnetic field they become coupled and besides their self inductance they have a mutual inductance as well.
- For this circuit:
- ![](https://electrical.codidact.com/uploads/9BbSeaQgDrCoxDMhzybYnxP9)
- Now current entering one coil marked with a dot , produces a current exitting the couple coil at its dotting end.In L1 current enters from the dotted end so this creates a current which exits from the dotted end of L2 and in L2 current enters from the dotted end so this again creates a current which exits from the dotted end of L1 so we get 2 voltage drops from self inductance of each coil and 2 voltage drops from the mutual inductance of the coupled coils.
- ![I](https://electrical.codidact.com/uploads/9rF1TGmSbyjXheyYbaf81p3z)
- so that is translated to this equation:
- ![](https://electrical.codidact.com/uploads/emSsaAC41ngoDAQM1JsoPyNq)
- Now obviously :
- ![](https://electrical.codidact.com/uploads/UGnT3PZrtT6aqkMHLrsnwmdq)
- The total inductance of the circuit becomes ![](https://electrical.codidact.com/uploads/vdsK3wj6wSQYEpeKCPvXCnpv)
- the value of the mutual inductance is:(with k=1)
- ![](https://electrical.codidact.com/uploads/X3znhTfjLipcUBHdWcQUfpv4)
- $L_{T}=4H$
- and the equation of current of this circuit becomes
- ![](https://electrical.codidact.com/uploads/6q6XKefrqD8ZUzYHqmJNcKox)
#2: Post edited
- When 2 inductors share the same magnetic field they become coupled and besides their self inductance they have a mutual inductance as well.
- For this circuit:
- ![](https://electrical.codidact.com/uploads/9BbSeaQgDrCoxDMhzybYnxP9)
- Now current entering one coil marked with a dot , produces a current exitting the couple coil at its dotting end.In L1 current enters from the dotted end so this creates a current which exits from the dotted end of L2 and in L2 current enters from the dotted end so this again creates a current which exits from the dotted end of L1 so we get 2 voltage drops from self inductance of each coil and 2 voltage drops from the mutual inductance of the coupled coils.
- ![I](https://electrical.codidact.com/uploads/9rF1TGmSbyjXheyYbaf81p3z)
- so that is translated to this equation:
- ![](https://electrical.codidact.com/uploads/emSsaAC41ngoDAQM1JsoPyNq)
- Now obviously :
- ![](https://electrical.codidact.com/uploads/UGnT3PZrtT6aqkMHLrsnwmdq)
the value of the mutual inductance is:(with k=1)![](https://electrical.codidact.com/uploads/X3znhTfjLipcUBHdWcQUfpv4)- so the total inductance of the circuit becomes ![](https://electrical.codidact.com/uploads/vdsK3wj6wSQYEpeKCPvXCnpv)
- and the equation of current of this circuit becomes
- ![](https://electrical.codidact.com/uploads/6q6XKefrqD8ZUzYHqmJNcKox)
- When 2 inductors share the same magnetic field they become coupled and besides their self inductance they have a mutual inductance as well.
- For this circuit:
- ![](https://electrical.codidact.com/uploads/9BbSeaQgDrCoxDMhzybYnxP9)
- Now current entering one coil marked with a dot , produces a current exitting the couple coil at its dotting end.In L1 current enters from the dotted end so this creates a current which exits from the dotted end of L2 and in L2 current enters from the dotted end so this again creates a current which exits from the dotted end of L1 so we get 2 voltage drops from self inductance of each coil and 2 voltage drops from the mutual inductance of the coupled coils.
- ![I](https://electrical.codidact.com/uploads/9rF1TGmSbyjXheyYbaf81p3z)
- so that is translated to this equation:
- ![](https://electrical.codidact.com/uploads/emSsaAC41ngoDAQM1JsoPyNq)
- Now obviously :
- ![](https://electrical.codidact.com/uploads/UGnT3PZrtT6aqkMHLrsnwmdq)
- so the total inductance of the circuit becomes ![](https://electrical.codidact.com/uploads/vdsK3wj6wSQYEpeKCPvXCnpv)
- the value of the mutual inductance is:(with k=1)
- ![](https://electrical.codidact.com/uploads/X3znhTfjLipcUBHdWcQUfpv4)
- and the equation of current of this circuit becomes
- ![](https://electrical.codidact.com/uploads/6q6XKefrqD8ZUzYHqmJNcKox)
#1: Initial revision
When 2 inductors share the same magnetic field they become coupled and besides their self inductance they have a mutual inductance as well. For this circuit: ![](https://electrical.codidact.com/uploads/9BbSeaQgDrCoxDMhzybYnxP9) Now current entering one coil marked with a dot , produces a current exitting the couple coil at its dotting end.In L1 current enters from the dotted end so this creates a current which exits from the dotted end of L2 and in L2 current enters from the dotted end so this again creates a current which exits from the dotted end of L1 so we get 2 voltage drops from self inductance of each coil and 2 voltage drops from the mutual inductance of the coupled coils. ![I](https://electrical.codidact.com/uploads/9rF1TGmSbyjXheyYbaf81p3z) so that is translated to this equation: ![](https://electrical.codidact.com/uploads/emSsaAC41ngoDAQM1JsoPyNq) Now obviously : ![](https://electrical.codidact.com/uploads/UGnT3PZrtT6aqkMHLrsnwmdq) the value of the mutual inductance is:(with k=1) ![](https://electrical.codidact.com/uploads/X3znhTfjLipcUBHdWcQUfpv4) so the total inductance of the circuit becomes ![](https://electrical.codidact.com/uploads/vdsK3wj6wSQYEpeKCPvXCnpv) and the equation of current of this circuit becomes ![](https://electrical.codidact.com/uploads/6q6XKefrqD8ZUzYHqmJNcKox)