Electronics and Communication Engineering - Networks Analysis and Synthesis

1. 

Which of the following is correct?

A. Voltages across a capacitance can change instantaneously
B. Voltages across a capacitance cannot change instantaneously
C. Charge across a capacitance is always constant
D. Charge across a capacitance can change instantaneously

Answer: Option B

Explanation:

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2. 

The V-i relation for a varistor is

A. i = kvn
B. v = kin
C. i = kv3
D. v = ki3

Answer: Option A

Explanation:

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3. 

For 2 port reciprocal network, o.c. output voltage divided by input current is equal to

A. B
B. z12
C. 1/y12
D. h12

Answer: Option C

Explanation:

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4. 

The energy dissipated W in a resistance having voltages v and current i is given by

A.
B. W = vit2
C.
D.

Answer: Option A

Explanation:

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5. 

In figure, the current through 2 Ω resistance is

A. zero
B. -2A
C. 2A
D. 1A

Answer: Option A

Explanation:

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