Related Questions

The graph of current gain versus collector current indicates that the current gain
A varies enormously
B is contant
C varies slightly
D equals the collector current divided by the base current
E None of the above
If the current gain of the amplifier is X, its voltage gain is Y, then its power gain will be
A $$\frac{{\text{X}}}{{\text{Y}}}$$
B X × Y
C X + Y
D X - Y
When the collector current increases, what does the current gain do?
A decreases
B stays the same
C increases
D any of the above
E None of the above
On selling a chair at 7% loss and a table at 17% gain, a man gains Tk 296. If he sells the chair at 7% gain and the table at 12% gain, then he gains Tk. 400. The actual price of the table is ---
A Tk. 2400
B Tk. 2200
C Tk. 1800
D Tk. 1600
If the temperature of a crystal diode increases, then leakage current ___________
A remains the same
B decreases
C increases
D becomes zero
Heat flux increases with temperature drop beyond the Leiden frost point in the plot of heat flux vs. temperature drop for a boiling liquid, because
A Convection becomes important
B Conduction becomes important
C Radiation becomes important
D Sub-cooled boiling occurs
As the difference between the wall temperature and bulk temperature increases, the boiling heat transfer co-efficient
A Continues to increase
B Continues to decrease
C Goes through a minimum
D Goes through a maximum
For most salts, the solubility increases with rise in temperature, but the solubility of __________ is nearly independent of temperature rise.
A Sodium chloride
B Sodium carbonate monohydrate
C Anhydrous sodium sulphate
D Hypo
A bookseller can gain 6.666% if he offers a 20% commission on the written selling price of a book. If the commission is reduced to 10% , what will be his gain ?
A 15%
B 10%
C 20%
D 25%
A watch gains 7 minutes and 6 seconds every 6 days. if the rate of gain is constant, how much does the watch gain in one day?
A 1 min 6 sec
B 1 min 11 sec
C 1 min 16 sec
D 1 min 21 sec

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