I have an assignment question that reads like following:
A220V, 125Hz supply is suddenly switched across a coil. the current in the coil reaches 692mA after 3.2 ms and the circuit is then switched off.
At this point I must calculate a bunch of stuff, but the first one baffles me.
It says I must calculate the final steady value of the current.
What I know:
Current will reach a max. twice at 4ms interval each. This may not mean much for the following question though.
My reasoning, there is no parallel resistor for any further current flow, so no circuit will exist, you'll be stuck with a coil with no supply to maintain the charge in the coil. What happened to the charge stored in the coil I can only guess, but it could have arced out when the switch was opened.
I do not know. But I'm sure that no circuit for current flow exists.
Any help would be appreciated.
A220V, 125Hz supply is suddenly switched across a coil. the current in the coil reaches 692mA after 3.2 ms and the circuit is then switched off.
At this point I must calculate a bunch of stuff, but the first one baffles me.
It says I must calculate the final steady value of the current.
What I know:
Current will reach a max. twice at 4ms interval each. This may not mean much for the following question though.
My reasoning, there is no parallel resistor for any further current flow, so no circuit will exist, you'll be stuck with a coil with no supply to maintain the charge in the coil. What happened to the charge stored in the coil I can only guess, but it could have arced out when the switch was opened.
I do not know. But I'm sure that no circuit for current flow exists.
Any help would be appreciated.