Saved Bookmarks
| 1. |
The wattage of a bulb is 24W when it is connected to a 12 v battery. Calculate the effective wattage if it operates on 6v battery. Calculate the wattage if it operates on a 6 v battery. Which of the following solution is correct for the above question and why and how to know which way to do? Solution 1:- P=V*I I=P/V I=24/12 I=2 A Now V = 6v New P = V*I = 6*2 = 12W Solution 2:- P = V2/R R = V2/P R = 122/24 R = 6 Ohm Now V = 6v New P = V2/R = 62/6 = 6W |
|
Answer» The wattage of a bulb is 24W when it is connected to a 12 v battery. Calculate the effective wattage if it operates on 6v battery. Calculate the wattage if it operates on a 6 v battery. Which of the following solution is correct for the above question and why and how to know which way to do? Solution 1:- P=V*I I=P/V I=24/12 I=2 A Now V = 6v New P = V*I = 6*2 = 12W Solution 2:- P = V2/R R = V2/P R = 122/24 R = 6 Ohm Now V = 6v
New P = V2/R = 62/6 = 6W |
|