Which of the following is or are True? (1) If you triple the length of a cable a

Question

Which of the following is or are True?

(1) If you triple the length of a cable and at the same time triple its diameter, the cable resistance will remain the same.
(2) The slope of the plot of current versus volatage for ohmic material is the resistance of the material.
(3) The resistivity of a material depends on its length and cross sectional area.
(4) If 1.6 A current flows through the cross section of a conductor is 1.0 s, then about 10^19 electrons flow through the cross section in 1.0 s
(5) Electric field is also defined as the potential gradient.

A All
B 1 2 and 3
C 4
D 5
E 4 and 5
F None

its not d

Explanation / Answer

All the given statements are True. so the answer is Option A.

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