However, for creating the quizzes we advise you to use a computer, since it can be a bit clumsy on a touch screen.
You could have the students type in the web address or send it to them by email. Another way to do it is to print or display a QR Code. A QR Code is a two-dimensional barcode that can be read pointing the camera at the code. You can create a QR code here: http://qrcode.kaywa.com. To scan the QR code, one needs to install a QR Code Scanner app.