Saved Bookmarks
| 1. |
Question 33: A p.d. of 10 V is needed to make a current of 0.02 A flow through a wire. What p.d. is needed to make a current of 250 mA flow through the same wire ? Lakhmir Singh Physics Class 10 |
|
Answer» 125VExplanation:Since by the HELP of Ohm's law we can CONCLUDE that V=IRso 10V and 0.02 A gives 500 ohm resistance250 mA and 500ohm will give 125 VV=250/1000*500=1/4*500=125V |
|