If ?r' and ?r" are the real and imaginary parts of complex dielectric constant ?

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Question
If ?_r' and ?_r" are the real and imaginary parts of complex dielectric constant ?_r, and ? is the loss angle. Then
Options
A.
B.
C. tan ? = ?'?"
D. tan ? = 1 - ?'

Correct Answer

Explanation

If ?_r^" = 0, ? = 0.

More questions

1. Assertion (A): Electronic and Ionic polarization in a polyatomic gas are independent of temperature.
Reason (R): The orientation polarization is independent of temperature.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

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A.	Synchro	1.	Amplifier
B.	Amplidyne	2.	Actuator
C.	Servo	3.	Compensator
D.	RC network	4.	Transducer

Options
A. A-1, B-2, C-3, D-4
B. A-4, B-3, C-2, D-1
C. A-3, B-2, C-4, D-1
D. A-4, B-1, C-2, D-3

3. Match the following:

	List I		List II
A.	Resistance	1.	Current noise
B.	Diode	2.	Partition noise
C.	Triode	3.	Shot noise
D.	p-n junction	4.	Atmospheric noise
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Options
A. A-5, B-3, C-2, D-1
B. A-1, B-2, C-3, D-5
C. A-3, B-5, C-1, D-2
D. A-3, B-5, C-2, D-1

5. Match the following:

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A.	Firm ware	1.	Converts program in high level language to machine language
B.	Compiler	2.	Converts assembly language program into machine language
C.	Assembler	3.	Software embedded in hardware
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Options
A. A-1, B-2, C-3, D-4
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Options
A. pulses with very small width
B. pulses with very large width
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Options
A. when power factor is less than 0.5 lagging
B. when power factor is greater than 0.5 lagging
C. when power factor is less than 0.5
D. when power factor is unity

9. A 750 A circuit uses thyristor of current rating 175 A. If derating is 25%, the number of thyristors in parallel is
Options
A. 3
B. 4
C. 6
D. 10

10. Match the following:

	List I		List II
A.	R_T	1.	A = D
B.	R_h	2.	h₁₂ = h₂₁
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Options
A. A-3, B-4, C-1, D-6
B. A-3, B-2, C-5, D-4
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