Need Science Help! Please!?
6: Does the wire in the electrical cord of an electric kettle have a higher or lower resistance than the heating element inside the kettle?
Explain Your answer
7: A 3 volt battery sends a current of 0.10 amps through a light bulb. What is the resistance of the filament of the bulb?
2007-01-09 23:10:34 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help
6. Lower because the heating impliment is designed to heat up because of it's higher resistance, if the cord had a higher again resistance it would heat up even more...
7. Yeah, i forget the formula for resistance, ohms, etc. Given you've probably got notes in front of you - it it'll be the one that has current, voltage and resistance in it and pop the number in...
2007-01-09 23:16:16 · answer #1 · answered by purplebuggy 5 · 0⤊ 0⤋
a very high resistance, that causes the heat. almost like electrical friction.
V=IR the resistance = 3/0.10= 30amp
2007-01-09 23:15:05 · answer #2 · answered by jaffarkelshac 3 · 0⤊ 0⤋
7: U=RI so R=U/I = 3/0.1 = 30 ohm
2007-01-10 00:49:49 · answer #3 · answered by steph 1 · 0⤊ 0⤋