Conductivity depends on the nature of material of conductor.
So, (D)unchanged is the correct answer
Hope it helps✌️✌️
THE RESIPROCAL OF RESISTIVITY OF A CONDUCTOR IS CALLED CONDUCTIVITY
AS IT IS DIRECTLY PROPORTIONAL TO LENGTH SO CONDUCTIVITY WILL BE HALVED
OPTION "A" IS CORRECT
HOPE IT HELPS U☺☺
So A=2times of intial
R is directly proportional to lenth and inversly Perprtional to current
So when lenth is half than r also became hal f and current double
answer: as we know that
Explanation:The resistance of a conductor is directly proportional to its length (L) as R ∝ L. Thus doubling its length will double its resistance, while halving its length would halve its resistance. Also the resistance of a conductor is inversely proportional to its cross-sectional area (A) as R ∝ 1/A
Conductivity is an intrinsic property of a material i.e. it depends only on the nature of material but not on the dimensions of the conductor. Thus conductivity remains the same even if the length of the conductor is halved.
Hope it help
he resistance of the conductor is directly proportional to the length of the A substance, which posses conductance as its major property can be called as a good Gassing of electrolyte and evaporation Service life is halved for every 8 deg mSv) The explanatory notes for these guidelines are given in Annexure-IX.
if the length of the conductor is half then its resistance becomes half
because resistance is directly proportional To length
It's conductance or conductivity will be doubled
Let R = Resistance
ρ = Resistivity
L = Length in meter
A = Area
R = ρL/A
Now new length = L/2
New Resistance =
R' = ρL/2A
or, R'= R/2
So the new resistance will be halved
Please Mark it Brainliest
✓water glass trick. fill a cup one- with water.
✓fountain bottle. fill a 2-liter soda bottle half full of water.
✓ping-pong funnel. put a ping-pong ball inside the wide part of a funnel and blow hard into the narrow end.
✓the million dollar bet.
dil to blood pump krta he usse kya fark padega : (