Also see how to use the resistance in dcaclab.
<iframe src="https://dcaclab.com/experiments/11947-connecting-resistance-in-parallel/iframe" width="560" height="410" frameborder="0"></iframe>
Cite: Sheikh, F. (2018). Connecting Resistance in Parallel. DCACLab. https://dcaclab.com/circuits/11947-connecting-resistance-in-parallel