This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Could somebody explain to me why in a series circuit with 3 lights one at 4.2w , 60w and 50w only the 4.2W lamp will light up I understand that the current will be the same through out but I am a little confused thank you

Parents
  • The volt drop is different across each bulb. The 4.2W bulb uses the most power due to less resistance and will light up while the other two bulbs will use less power because smaller voltage but as you say the same current. The 4.2 W is the rating of the bulb (max power) so will probably light up to much and break.

Reply
  • The volt drop is different across each bulb. The 4.2W bulb uses the most power due to less resistance and will light up while the other two bulbs will use less power because smaller voltage but as you say the same current. The 4.2 W is the rating of the bulb (max power) so will probably light up to much and break.

Children
No Data