From a homogeneous and isotropic dielectric material of dielectric constant ?r,

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Question
From a homogeneous and isotropic dielectric material of dielectric constant ?_r, a small volume element is taken out creating a cavity. The field can be kept homogeneous if D_i. (i.e., electric flux density inside the cavity) and D₀ (i.e., electric flux density outside the cavity) are such that
Options
A. D₀ = D_i
B.
C.
D. either (a) or (b)

Correct Answer

Explanation

Since the field is homogeneous

From a homogeneous and isotropic dielectric material of dielectric constant ?r, a small volume eleme

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More questions

2. Assertion (A): A GTO can be turned on and turned off by gate pulses
Reason (R): A GTO can be turned off by negative gate pulse.
Options
A. Both A and R are correct and R is correct explanation of A
B. Both A and R correct but R is not correct explanation of A
C. A is correct but R is wrong
D. A is wrong but R is correct

4. In a flash type ADC, employing 15 comparators resolution with 10 volts reference; is expected to be :
Options
A. 0.625 V
B. 0.656 V
C. 0.525 V
D. insufficient data

5. As compared to the number of network elements in Brune synthesis, the number of network elements Bott-and Duffin in realization is
Options
A. more
B. less
C. equal
D. any of the above

6. At room temperature, the current in intrinsic semiconductor is due to
Options
A. holes
B. electrons
C. ions
D. holes and electrons

9. During forward blocking state of SCR, the voltage and current respectively are
Options
A. high and high
B. low and low
C. high and low
D. low and high

10. Match the following:

	List I		List II
A.	CTFS	1.	Periodic
B.	DTFS	2.	Non-periodic
C.	CTFT
D.	DTFT

Options
A. A-2, B-1, C-2, D-2
B. A-2, B-1, C-2, D-1
C. A-1, B-2, C-2, D-2
D. A-1, B-2, C-2, D-1

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