A lamp is to be connected in a circuit so that the potential difference (p.d.) across it can be adjusted from $0$ to $6\,\text{V}$. Which circuit would be the most suitable?
Physics 0625 · IGCSE · Electric circuits
A lamp is to be connected in a circuit so that the potential difference (p.d.) across it can be adjusted from $0$ to $6\,\text{V}$. Which circuit would be the most suitable?