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Electronics and Communication Engineering - Electronic Devices and Circuits

Exercise : Electronic Devices and Circuits - Section 12
36.
If VA = - 10 V and VB = - 15 V, VAB = 5 V.
True
False
Answer: Option
Explanation:

VAB = VA - VB = 10 -(-15) = 5V.

37.

Assertion (A): Tie set schedule is used in nodal analysis.

Reason (R): Loop currents are fictitious quantities.

Both A and R are true and R is correct explanation of A
Both A and R are true and R is not the correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:

Tie set schedule is used in loop analysis.

38.
When a lead acid cell discharges, the specific gravity of electrolyte increases.
True
False
Answer: Option
Explanation:

During discharging specific gravity decreases.

39.
For a high pass filter, β = p in attenuation band.
True
False
Answer: Option
Explanation:

β = - p.

40.
A minimum function has
poles and zeros on imaginary axis of s plane
no poles or zeros on imaginary axis of s plane
only poles but no zeros on imaginary axis of s plane
only zeros but no poles on imaginary axis of s plane
Answer: Option
Explanation:

Poles and zeros on imaginary axis lead to reactance function. A minimum function cannot have poles and zeros on imaginary axis.

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