Two thin dielectric slabs of dielectric constants K_1 and K_2 ( K_1 < K_2 ) are inserted between plates of a parallel plate capacitor. The variation o - Physics MCQ Physics | ExamTest.live

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Two thin dielectric slabs of dielectric constants K_{1} and K_{2} (K_{1} < K_{2}) are inserted between plates of a parallel plate capacitor. The variation of electric field ' E' between the plates with distance ' d' as measured from plate P is correctly shown by:

A $1$
B $2$
C $3$
D $4$

Solution & Step-by-step Explanation

Electric field in air E_{0} = \frac{σ}{ϵ _{0}} .In a dielectric, E = \frac{E _{0}}{K} .Since K_{1} < K_{2}, then \frac{1}{K _{1}} > \frac{1}{K _{2}} .So, E_{0} > E_{1} > E_{2} .The electric field is highest in air/vacuum, lower in the first slab (K_{1}), and even lower in the second slab (K_{2}). Graph (3) correctly represents this stepped decrease.

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Two thin dielectric slabs of dielectric constants K_{1} and K_{2} (K_{1} < K_{2}) are inserted between plates of a parallel plate capacitor. The variation of electric field ' E' between the plates with distance ' d' as measured from plate P is correctly shown by:

1

2

3

4

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Two thin dielectric slabs of dielectric constants $K_{1}$ and $K_{2}$ ( $K_{1} < K_{2}$ ) are inserted between plates of a parallel plate capacitor. The variation of electric field ' $E$ ' between the plates with distance ' $d$ ' as measured from plate $P$ is correctly shown by:

Solution & Step-by-step Explanation

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Discussion

Two thin dielectric slabs of dielectric constants K1​ and K2​ (K1​<K2​) are inserted between plates of a parallel plate capacitor. The variation of electric field 'E ' between the plates with distance 'd ' as measured from plate P is correctly shown by:

Solution & Step-by-step Explanation

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Discussion

Two thin dielectric slabs of dielectric constants $K_{1}$ and $K_{2}$ ( $K_{1} < K_{2}$ ) are inserted between plates of a parallel plate capacitor. The variation of electric field ' $E$ ' between the plates with distance ' $d$ ' as measured from plate $P$ is correctly shown by: