Already a member?
Sign in
Ohm's Law and Edison
Thomas Edison greatly considered Ohm's Law in his design for the electric light bulb. "Very early on, Edison had realized that... he should be seeking to create incandescence with a high-resistance material." However, economically conscious of the costs of copper wire with a large resistance, "the only way... was to run very low currents through thin copper wire."
This process obeyed Ohm's Law in that the E, the electromotive force, is equal to I, current, times R, resistance. So, to run a low current of approximately 0.55 Amperes, you would need a voltage of roughly 110V and a resistance of perhaps 200ohms.
References:
1) Jill Jonnes' Empires of Light (page 59)
This process obeyed Ohm's Law in that the E, the electromotive force, is equal to I, current, times R, resistance. So, to run a low current of approximately 0.55 Amperes, you would need a voltage of roughly 110V and a resistance of perhaps 200ohms.
References:
1) Jill Jonnes' Empires of Light (page 59)
mdupuy |
Latest page update: made by mdupuy
, Sep 21 2007, 4:07 PM EDT
(about this update
About This Update
Edited by mdupuy
91 words added 58 words deleted view changes - complete history) |
|
Keyword tags:
None
More Info: links to this page
|