Physical World Units And Measurements Ques 30
30. Dimensional formula of self inductance is
[1989]
(a) $[MLT^{-2} A^{-2}]$
(b) $[ML^{2} T^{-1} A^{-2}]$
(c) $[ML^{2} T^{-2} A^{-2}]$
(d) $[ML^{2} T^{-2} A^{-1}]$
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Answer:
Correct Answer: 30.(c)
Solution:
- (c) $L=\varepsilon(\frac{d t}{d I})=\frac{W}{q}[\frac{d i}{d t}]=\frac{W}{i \cdot t}[\frac{d i}{d t}]$
or, $[L]=\frac{[ML^{2} T^{-2}][T]}{[AT][A]}=[ML^{2} T^{-2} A^{-2}]$
BETA
