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Resistance = resistivity * (length/x-sectional area)ans is A :/View attachment 54892
It's not the same. In the previous question, volume was same but length and area were different.View attachment 54893
but then why isn't this concept applicable here? here the ans is C, why ? :S how is it different?
Oh, I get it.. Thanks A lotIt's not the same. In the previous question, volume was same but length and area were different.
In this one, volume and length are both same.
Driving force = ma = 1800 * 2 = 3600NHELP
Ans is C
HELPPP
Correct answer is C.
KE = 0.5 * 50 * 3 * 3 = 225help me with this pleaseee. Ans is A View attachment 54896
Cuz Electric Field exerts a constant force so +Q and -Q 's have equal forcesView attachment 54900
Why is resultant force zero?
Wire is of same steel so same Young Modulus. The difference will be in extension.
Compression is proportional to length but also inversely proportional to area of cube.
Thanks a TON!help me with this pleaseee. Ans is A View attachment 54896
All linear dimensions are one tenth so volume will be 1/1000. Same material is used so density is same and mass should also be 1/1000 to maintain same density. Weight depends on mass so it will also be 1/1000.
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