i wan to test out adwords, so can i prepay google like $50 and when the $50 runs out, so will the campaign???
yes... if you go for prepay you will have to pay in advance and your campaigns will stop running once the budget is over. Do remember that you will not be able to convert your prepay account to post pay or vice versa...so you might want to decide which one do you want to go for... hope this helps