Re: Direction of Induced I in a loop of conductor?
- From: bill.sloman@xxxxxxxx
- Date: 26 May 2007 16:11:45 -0700
On May 26, 7:11 pm, jmc8...@xxxxxxxxxxxx wrote:
On May 26, 5:37 pm, bill.slo...@xxxxxxxx wrote:
On May 26, 3:19 pm, jmc8...@xxxxxxxxxxxx wrote:
Suppose a loop of conductor is intitially carrying no current and is
placed in a changing magnetic field for time T, and the induced
current is allowed to go back to zero. If this is repeated with the
magnetic field changing in the same way, will the induced I circulate
clockwise 50% of the time, anti-clockwise 50%?
No. The direction of the current flow is totally predictable.
http://en.wikipedia.org/wiki/Right_hand_grip_rule
Thank you for taking the time to post me a link, even if it isn't
relevant ;) The direction is given by Lenz's Law which I completely
forgot about. Doh!
The right hand grip rule explicitly gives the the direction of the
current induced in a loop, or a stack of loops aka a solenoid. Lenz's
Law is much less immediately comprehensible.
http://en.wikipedia.org/wiki/Lenz's_law
But I suppose relevance is in the eye of the beholder.
--
Bill Sloman, Nijmegen
.
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