1. Is there any formula for calculating the leakage current carried by a dielectric in a capacitor?(adsbygoogle = window.adsbygoogle || []).push({});

2. A battery-powered light bulb has a tungsten filament. When the switch connecting the bulb to the battery is first turned on and the temperature of the bulb is 20 ^\circ {\rm C}, the current in the bulb is 0.860 {\rm A}. After the bulb has been on for 30 {\rm s}, the current is 0.220 {\rm A}.What is then the temperature of the filament?

for number 2, is there any formula relating current to temp ? I looked thru the net and my coursework but found no such formula. Any help for these 2 questions would be greatly appreciated!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Hi ppl I need some help on leakage current in a dielectric and current-temp relation.

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**