Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
6394:
k jus wanna mak sure abt somthing
induction opp poles are formed like attachmnt!! :P :P
n strkin same poles r formd ryt!!!!!!
??????????
Shazizzzle:
--- Quote from: Ivo on May 26, 2010, 10:25:54 am ---
145 0 145
A -> beta + Z
92 -1 93
Answer is D, oui ou non?
--- End quote ---
Non, They say answer is B!
And I get it now. See A@di's post.
Ivo:
--- Quote from: 6394 on May 26, 2010, 10:26:33 am ---k jus wanna mak sure abt somthing
induction opp poles are formed like attachmnt!! :P :P
n strkin same poles r formd ryt!!!!!!
??????????
--- End quote ---
I think induction always causes attraction.
Shazizzzle:
--- Quote from: A@di on May 26, 2010, 10:25:48 am ---
In beta decay, the weak interaction converts a neutron (n) into a proton (p) while emitting an electron (e-)
First) 38)m/j06. As the above states, the electron comes from the neutron, the neutron is in the nucleus.
Second) When a beta particle is emitted, The mass remains the same, because a neturon is replaced by a proton, the no. of neutrons decrease , no. of proton increases.
--- End quote ---
OH! Okay! Thanks! :)
I Can't believe we weren't told this!
+rep :)
Dana:
--- Quote from: Raywin on May 26, 2010, 10:11:35 am ---Hey guys... slip ring commutators split rings and brushes.. :S wht r they and wht r they present in? Thxs in advance.. :)
--- End quote ---
Slip rings are in generators they remove the current produced. the brushes hold them in place i think and are attached to the coils/wires where the voltmeter/ammeters are. Look in your book I'm sure there's a drawing there for a genrator.
Split ring commutators are in motors and are there to ensure that the motor continues to spin.
Hope I helped!
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