Related Questions

A manufacturer of jam wants to make a profit of Tk. 0.65 each to make first 100 jars of jams and Tk. 0.55 to make each jar after the first 100. How much profit he will make from 300 jars of jam?
A Tk. 165
B Tk. 175
C Tk. 185
D Tk. 220
In an intrinsic semiconductor, the number of free electrons
A Equals the number of holes
B Is less than the number of holes
C Is greater than the number of holes
D Impossible to say
E None of the above
Materials with lots of free electrons are called
A Conductors
B Insulators
C Semiconductors
D Filters
The number of free electrons and holes in intrinsic semiconductor increases when the temperature
A Decreases
B Increases
C Stays the same
D 0oC
E None of the above
Free electrons exist in
A First band
B Second band
C Third band
D Conduction band
How many free electrons does a p type semiconductor has?
A Only those produced by thermal energy
B Only those produced by doping
C Those produced by doping as well as thermal energy
D Any of the above
The substances which have a large number of free electrons and offer a low resistance are called
A Insulators
B Inductors
C Semiconductors
D Conductors
The random motion of holes and free electrons due to thermal agitation is called ___________
A Diffusion
B Pressure
C Ionisation
D None of the above
It costs X taka each to make the first thousand copies of a CD and Y taka to make each subsequent copy. How many taka will it cost to make Z copies (Z is greater than 1000) of the CD?
A 1000X +YZ
B 1000(Z-X) + XY
C 1000 (Z-Y) +XZ
D 1000(X-Y) +YZ
A manufacturer of jam wants to make a profit of Tk. 0.65 each to make first 100 jars of jams and Tk. 0.55 to make each jar after the first 100. What price would he charge for 300 jars of jam?
A Tk. 75
B Tk. 175
C Tk. 225
D Tk. 240

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