Science
Two conducting wires of the same material and of equal lengths and equal diameters are first connected in series and then parallel in a circuit across the same potential difference. The ratio of heat produced in series and parallel combinations would be
- 1:2
- 2:1
- 1:4
- 4:1
Related Questions
An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, the power consumed will be ……………
- 100 W
- 75 W
- 50 W
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A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10–8 Ω m. What will be the length of this wire to make its resistance 10 Ω? How much does the resistance change if the diameter is doubled?