#### Electronman

##### New Member

Hi

Can somebody direct me how to calculate the RC constant for the bellow circuit? I want to determine the rate of flashing of the light but I am not sure if I can use The RC time constant formula or Have to consider the Inductance of the relay's wires?

My relay has a 400 ohms wound.

Thanks a bunch

Can somebody direct me how to calculate the RC constant for the bellow circuit? I want to determine the rate of flashing of the light but I am not sure if I can use The RC time constant formula or Have to consider the Inductance of the relay's wires?

My relay has a 400 ohms wound.

Thanks a bunch