Single Phase Full Wave Mid-point Converter with R Load and RL Load

How much is the efficiency of centre tapped full wave rectifier?
SCRs with a peak forward rating of 2 KV and an average on-state current rating of 50 A are used in a single phase mid-point converter. If the factor of safety is 2.5 then how much power can be handled by this converter?
For a silicon controlled rectifier to be turned on the anode current should be greater than what?
In the forward blocking mode of a silicon controlled rectifier, the SCR is in which mode?
What is the formula of output rms voltage for single phase full wave mid-point converter with R load?