NEET
- Exam
- NEET
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- Physics
- Chapter
- Capacitance
NEET · Physics · Capacitance
Statement-1 : If capacitor is filled with, same thickness (t) of...
Statement-1 : If capacitor is filled with, same thickness (t) of dielectric ((\mathrm{t} < \mathrm{d})) and conducting sheet one after another, then capacitance are (\mathrm{C}_1) and (\mathrm{C}_2) respectively then (\mathrm{C}_1 < \mathrm{C}_2) and
Statement-2 : Capacitance is more in presence of metal sheet in compare to dielectric sheet as (\mathrm{K}_{\text{Condext }}>\mathrm{K}_{\text{delectric }})
Options
- AStatement-1 is True, Statement-2 is True ; Statement-2 is a correct explanation for Statement-1.
- BStatement-1 is True, Statement-2 is True ; Statement-2 is not a correct explanation for Statement-1.
- CStatement-1 is True, Statement-2 is False.
- DStatement-1 is False, Statement-2 is True.
Correct answer
A. Statement-1 is True, Statement-2 is True ; Statement-2 is a correct explanation for Statement-1.
Step-by-step solution
- With dielectric sheet of thickness :
(C_{\text{dielectric }}=\frac{\varepsilon_0 A}{(d-t)+\frac{t}{K}})
- With conducting sheet of thickness :
(C_{\text{metal }}=\frac{\varepsilon_0 A}{d-t})
Since
((d-t)+\frac{t}{K}>(d-t) \quad \Rightarrow \quad C_{\text{dielectric }} < C_{\text{metal }})
Thus:
- Statement-1: True ().
- Statement-2: True (capacitance is more with conductor than dielectric).
- Statement-2 correctly explains Statement-1.