How to bind the src of an image to ng-model and extract it in Angular?

I want to bind the source of an image to the source of another image.

In the end result, the source of the large image should be bound to the src of the clicked smaller (thumbnail) image. Is this possible using ng-model?

Here's what I've got

        <div>
            <img ng-src="{{selectedImg.src}}">
        </div>

        <div>
            <ul ng-repeat="thumb in franchises">
                <li>
                    <img ng-src="{{thumb.images[0].list}}" ng-model="selectedImg">
                </li>
            </ul>
        </div>