If you are a beginner you should invest at least $1k of your money and at least a 1-2 to learn adwords a bit.
Google AdWords aims to provide the most effective advertising available for businesses of any size. It helps your business meet your customer acquisition that: * Reach people looking for your product or service * Fully control your ad budget * Easily create and edit your ads * See your ads on Google within minutes of creating them Also, AdWords gives you 24/7 access to detailed performance reports that help you track the effectiveness of your ad campaigns. There's no minimum spending requirement in Adwords, just a nominal, one-time activation fee ($5). You set the limit on how much you're willing to spend each day, also, Adwords gives suggestion on the spending limit you'd like for your campaign.