I'd say $100 is good to start not 10$ ... on an atleast $50 commission products you need only 2 sells....3 to make a profit....if CPC is $1 ..with $10, if you get 10 clicks means nothing.
But, if you can put $10 and make a single sell..thats interesting to look at on raising your budget ... and still doesnt mean you found your golden nugget.
On a PPC campain i did, i had 20$ budget and made a $100 sale once... I increased budget to $100 next day and all money was wasted without a single sell.... Every ppc campain is pure gambling in some way...