Physical World Units and Measurements - Result Question 17

17. Dimensions of resistance in an electrical circuit, in terms of dimension of mass [M], of length [L], of time [T] and of current [I], would be

(a) [ML2T−2]

(c) [ML2T−3I−2]

(b) [ML2T−1I−1]

(d) [ML2T−3I−1]

[2007]

Show Answer

Answer:

Correct Answer: 17. (c)

Solution:

  1. (c) As we know that

R=[V][I]=wq⋅i=wi⋅t⋅i

Dimension of Resistance

=[ML2T−3I−1][T][I]=[ML2T−3I−2]

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