The drift velocity of electrons is very small as compared to speed of light equa

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Question
The drift velocity of electrons is
Options
A. very small as compared to speed of light
B. equal to speed of light
C. almost equal to speed of light
D. half the speed of light

Correct Answer

very small as compared to speed of light

Explanation

Drift velocity of electrons is very small.

Networks Analysis and Synthesis problems

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1. A series RL circuit has . If a voltage 4 sint + 4t is applied, the steady state current will be
Options
A. 4 sin (4t - 45�)
B.
C.
D.

2. A cable has an insulation resistance of 10¹⁰ ohms. If the length is doubled, the insulation resistance will be
Options
A. 2 x 10¹⁰ ?
B. 0.5 x 10¹⁰ ?
C. 10¹⁰ ?
D. 4 x 10¹⁰ ?

3. In figure, the current supplied by battery immediately after switching on the circuit is
Options
A. 1 A
B. 4 A
C. 10 A
D. 0

4. For a transmission line open circuit and short circuit impedances are 20 ? and 5 ?. Then characteristic impedance is
Options
A. 100 ?
B. 50 ?
C. 25 ?
D. 10 ?

5. Which of the following is correct for a driving point functions?
Options
A. The real parts of all poles must be negative
B. The real parts of all poles and zeros must be negative
C. The real parts of all poles and zeros must be negative or zero
D. The real parts of all zeros must be negative

8. In an ac circuit, the maximum and minimum values of power factor can be
Options
A. 2 and 0
B. 1 and 0
C. 0 and -1
D. 1 and -1

9. The synthesis of minimum function was suggested by
Options
A. O'Brune
B. R. Richards
C. Bott and Duffin
D. none of the above

10. Wave A = 100 sin ?t and wave B = 100 cos ?t. Then
Options
A. rms values of the two waves are equal
B. rms values of A is more than that of B
C. rms values of A is less than that of B
D. rms values of the two waves may or may not be equal

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