AC Circuits - Page 3

  • Electricity problem..... please can you solve this...?
  • How do I calculate this ?
  • A coil possessing both inductance L and resistance R is connected to a 24V dc supply having negligible internal resistance. The dc current in this circuit is found to be 3A. When the coil is connected to a 24V, 50Hz ac supply with negligible internal....?
  • I am confused. Can someone please help me with this as quickly as possible?
  • What is the voltage-time graph for an inductor when the switch closes?
  • Why is an ammeter connected in series in a circuit?
  • How can i increased the power of a battery i.e if the battery is of 9 volt then how can i make it of 50 volt( without changing it ) ? is there any method or device?