What is the path difference of destructive interference
|
(a) nl |
(b) n(λ + 1) |
(c) |
(d) |
What is the path difference of destructive interference
|
(a) nl |
(b) n(λ + 1) |
(c) |
(d) |
(d)
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The output current versus time curve of a rectifier is shown in the figure. The average value of the output current in this case is
|
(a) 0 |
(b) i0/p |
(c) 2i0/p |
(d) i0 |
Angle of dip is 90o at
|
(a) Poles |
(b) Equator |
(c) Both (a) and (b) |
(d) None of these |
For a transistor, the current amplification factor is 0.8. The transistor is connected in common emitter configuration. The change in the collector current when the base current changes by 6 mA is
|
(a) 6 mA |
(b) 4.8 mA |
(c) 24 mA |
(d) 8 mA |
The electrochemical equivalent Z of any element can be obtained by multiplying the electrochemical equivalent of hydrogen with
|
(a) Atomic weight |
(b) Molecular weight |
(c) Chemical equivalent |
(d) A constant |
If a magnet is suspended at an angle 30o to the magnetic meridian, it makes an angle of 45o with the horizontal. The real dip is
|
(a) |
(b) |
(c) |
(d) |