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NEET 2007 (AIPMT) · Units & Dimensions

Units & Dimensions question from NEET 2007 (AIPMT)

Q94NEET 2007 · AIPMTEasy

Units & Dimensions

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

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Answer: (c)

  1. R=VIR = \frac{V}{I} and V=Wq⇒[V]=[ML2T−2][IT]=[ML2T−3I−1]V = \frac{W}{q} \Rightarrow [V] = \frac{[\mathrm{ML^2T^{-2}}]}{[\mathrm{IT}]} = [\mathrm{ML^2T^{-3}I^{-1}}]
  2. [R]=[ML2T−3I−2][R] = [\mathrm{ML^2T^{-3}I^{-2}}]
  3. So the answer is (c).
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