A parallel plate capacitor with air between plates (dielectric constant K =2) has a capacitance C. If the air is removed, then capacitance of the capa

Question

A parallel plate capacitor with air between plates (dielectric constant K =2) has a capacitance C. If the air is removed, then capacitance of the capa

A parallel plate capacitor with air between plates (dielectric constant K =2) has a capacitance C. If the air is removed, then capacitance of the capacitor is
A. `(C)/(sqrt2)`
B. `(C)/(2)`
C. `sqrt2C`
D. 2C

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
The capacity of parallel plate capacitor is given by
`C=(epsilon_(0)A)/(d)`
When plates of capacitor are separated by a dielectric medium of dielectric constant K,
then `" "C_("medium")=KC_("air")`
`therefore" "C_("air")=(C_("medium"))/(K)=(C)/(2)`

4 views Answered 2023-02-05 15:29