Electronics and Communication Engineering - Networks Analysis and Synthesis

1.
Which of the following is correct?
Voltages across a capacitance can change instantaneously
Voltages across a capacitance cannot change instantaneously
Charge across a capacitance is always constant
Charge across a capacitance can change instantaneously
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
The V-i relation for a varistor is
i = kvn
v = kin
i = kv3
v = ki3
Answer: Option
Explanation:
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3.
For 2 port reciprocal network, o.c. output voltage divided by input current is equal to
B
z12
1/y12
h12
Answer: Option
Explanation:
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4.
The energy dissipated W in a resistance having voltages v and current i is given by
W = vit2
Answer: Option
Explanation:
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5.
In figure, the current through 2 Ω resistance is
zero
-2A
2A
1A
Answer: Option
Explanation:
No answer description is available. Let's discuss.