There are many resources that can help you learn how to play the electric ukuleles and it is up to you to decide on what works best for you. First, some manufacturers will provide a learning guide together with their ukulele, so if you’re a beginner going for such options is recommended.
There are also many books that you can buy and that are quite efficient if you can learn well from written material. If on the other hand, you want a more hands-on experience, you can find free videos on the internet or purchase a video guide to help you through every step.