1) Two cylindrical resisters are made from the same material, equal in length, b
ID: 1276129 • Letter: 1
Question
1) Two cylindrical resisters are made from the same material, equal in length, but differ in diameter. Resister1 has a diameter of d1, resister2 has a diameter of 2d.
If the same current flows throught both of the resisters, the voltage across the two resisters is
A) V1 > V2
B) V1 = V2
C) V1< V2
Brief explanation
2) if the two resistrs now are made from the same material, have the same diameter but the lengths differ (where resister1 = L, and resister2 = 2L), compare the voltage across the two resisters
A)V1>V2
B)V1=V2
CV1<V2
brief explanation
Explanation / Answer
resistance=resistivity*length/area
hence larger the area,lesser the ressitance,lesser the voltage difference.
hence V2 < V1
Q2.
resistance=resistivity*length/area
larger the length, larger the resistance and larger the voltage difference
hence V2 > V1
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