One way plug key

  • Thread starter gracy
  • Start date
  • #26
2,486
83
So,in your image is this a gap?
 

Attachments

  • #27
2,486
83
And in my plug key case
Is this a gap?
upload_2015-2-10_21-42-36.png
 
Last edited:
  • #28
2,486
83
OR
 
  • #29
gneill
Mentor
20,874
2,837
So,in your image is this a gap?
No, that's a mounting hole for putting a screw through to secure the switch to the table.

The gap is the space between the conductors.

Knife Gap.jpg
 
  • Like
Likes gracy
  • #30
2,486
83
upload_2015-2-10_21-54-24.png

Right?
 
  • #31
gneill
Mentor
20,874
2,837
No. They are binding posts for connecting your wires to the switch terminals.

The gaps are the spaces between the metal blocks. The gaps prevent current flowing from block to block unless a key plug is inserted to bridge the gap.
 
  • Like
Likes gracy
  • #32
2,486
83
What are metal blocks in 2 way plug key?
 
  • #33
2,486
83
upload_2015-2-10_22-9-38.png
 
  • #34
2,486
83
Are my 33rd and 27th posts correct?
 
  • #35
gneill
Mentor
20,874
2,837
Are my 33rd and 27th posts correct?
Yes.
 
  • #36
2,486
83
In my practical we are told to connect these gaps ,how can we connect gaps?
 
  • #37
gneill
Mentor
20,874
2,837
In my practical we are told to connect these gaps ,how can we connect gaps?
See post #22.

Edit: Sorry, I meant post number 31.
 
Last edited:
  • #38
2,486
83
(wheatstone)?Gaps are connected like wheatstone bridge?
 
  • #39
gneill
Mentor
20,874
2,837
(wheatstone)?Gaps are connected like wheatstone bridge?
The Wheatstone reference was due to the schematic symbol in question on the tiny, fuzzy image reminding me of a typical Wheatstone bridge setup.

I now realize that it's meant to represent a switching arrangement comprised of your Plug Key Switches (PKS's). So forget the Wheatstone.

Apparently you're meant to use the provided PKS's in the wiring up of your lab circuit. You'll have to figure out the wiring arrangement that makes the plug key switches accomplish the required reversal of the polarity of one of the cells.
 
  • #40
2,486
83
Apparently you're meant to use the provided PKS's in the wiring up of your lab circuit. You'll have to figure out the wiring arrangement that makes the plug key switches accomplish the required reversal of the polarity of one of the cells.
Is this answer of my 36th post?
 
  • #41
gneill
Mentor
20,874
2,837
Is this answer of my 36th post?
Your 36th post asked how to connect the gaps. That's easy: insert a plug key into the gap.

My previous response was to your question:

(wheatstone)?Gaps are connected like wheatstone bridge?
 

Related Threads on One way plug key

  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
6
Views
1K
  • Last Post
Replies
6
Views
2K
  • Last Post
Replies
22
Views
12K
  • Last Post
Replies
24
Views
14K
Replies
1
Views
505
  • Last Post
Replies
19
Views
2K
  • Last Post
Replies
4
Views
6K
  • Last Post
5
Replies
100
Views
12K
Replies
16
Views
3K
Top