PHB, page 242

Fire Bolt

0-level (Cantrip) Evocation

You hurl a mote of fire at a creature or object within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 fire damage. A flammable object hit by this spell ignites if it isn't being worn or carried.
At higher levels: This spell's damage increases by 1d10 when you reach 5th level 2d10 , 11th level 3d10 , and 17th level 4d10