JEE MAIN - Physics (2019 - 12th January Evening Slot - No. 18)
Let $$\ell $$, r, C and V represent inductance, resistance, capacitance and voltage, respectively. The dimension of $${\ell \over {rCV}}$$ in SI units will be :
[Aā1]
[LTA]
[LAā2]
[LT2]
Explanation
$$\left[ {{\ell \over r}} \right] = $$ T
[CV] $$=$$ AT
So, $$\left[ {{\ell \over {rCV}}} \right]$$ = $${T \over {AT}}$$ = [A$$-$$1]
[CV] $$=$$ AT
So, $$\left[ {{\ell \over {rCV}}} \right]$$ = $${T \over {AT}}$$ = [A$$-$$1]
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