A beam of the crackling energy would streak towards the creature within a specific range. It makes a ranged spell attack against to the target. So, on a hit, the target would take 1d10 force damage.
At Higher Levels:
This Eldritch Blast 5E Spell creates more than one beam whenever you reach higher levels with this spell; two beams at 5th level, 3 beams at 11th level and also 4 beams at 17th level.
Any way you can direct the beams either at the same target or else at the different ones. Do make a separate attack roll for each and every beam.
Do you know about lightning arrow 5e spell
|Casting Time||1 Action|
|Target||A creature within range|