self-induction

[ahmeeeeeeeeeed]

Hello

 

I want to ask..

 

When there is a circuit ( battery - Rheostat -lamb)

 

When we decrease the Rheostat .. the current will increase

 

But momently there will be a self induced current which will weaken the current

 

I want to know >> momently , which one will beat the other ??

 

 

And why ?

 

And If we increase the Rheostat , the current will decrease .. but there will be a self induced current which will strengthen it >> which will beat ??

 

 

 

AND why ??

[swansont]

Hello

 

I want to ask..

 

When there is a circuit ( battery - Rheostat -lamb)

 

When we decrease the Rheostat .. the current will increase

 

But momently there will be a self induced current which will weaken the current

 

I want to know >> momently , which one will beat the other ??

 

 

And why ?

 

And If we increase the Rheostat , the current will decrease .. but there will be a self induced current which will strengthen it >> which will beat ??

 

 

 

AND why ??

 

The self-induction can be viewed as an induced reactance (resistance). It slows the rate of increase (or decrease) of the current, but it doesn't "win."

 

 

battery - Rheostat -lamb. mmmm... roast lamb.

[SMF]

If Ahmeeeeeeeeeed has an incandescent lamb (another interesting image) the changing resistance of the filament with temperature also has to be taken into account. Resistance is low in a cold filament so a lot of current flows, but when it heats up and is bright its resistance increases and current reduces. SM

[alpha2cen]

Using constant voltage electric source is good for this kind of test.

When we use a battery, the battery capacity and chemical reaction rate affect the test result.

When the resistance of the filament is small, much current flows. As the result voltage dropping phenomena occurs.