![A torch bulb rated `4.5 W, 1.5 V` is connected as shown in Fig. 7.35. The emf of the cell needed... - YouTube A torch bulb rated `4.5 W, 1.5 V` is connected as shown in Fig. 7.35. The emf of the cell needed... - YouTube](https://i.ytimg.com/vi/ZY5AUNkEb1s/maxresdefault.jpg)
A torch bulb rated `4.5 W, 1.5 V` is connected as shown in Fig. 7.35. The emf of the cell needed... - YouTube
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![A torch bulb rated as 4.5 W, 1.5 V is connected as shown in figure. The e.m.f. of the cell, needed to make the bulb glow at full intensity is : A torch bulb rated as 4.5 W, 1.5 V is connected as shown in figure. The e.m.f. of the cell, needed to make the bulb glow at full intensity is :](https://dwes9vv9u0550.cloudfront.net/images/2078260/852d4a9b-d94d-49fd-929a-f0af9adf168d.jpg)
A torch bulb rated as 4.5 W, 1.5 V is connected as shown in figure. The e.m.f. of the cell, needed to make the bulb glow at full intensity is :
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