Related Questions

Given that, 24 carat gold is pure gold, 18 carat gold is 3/4th of pure gold and 20 carat gold is 5/6th of pure gold, the ratio of the pure gold in 18 carat gold to the pure gold in 20 carat gold is -
A 5 : 8
B 10 : 9
C 8 : 5
D 9 : 10
The impurity level in an extrinsic semiconductor is about of pure semiconductor.
A 10 atoms for 108 atoms
B 1 atom for 108 atoms
C 1 atom for 104 atoms
D 1 atom for 100 atoms
When a pure semiconductor is heated, its resistance ___________
A Goes up
B Goes down
C Remains the same
D Can?t say
If the doping level is increased, the breakdown voltage of the Zener ___________
A Remains the same
B Is increased
C Is decreased
D None of the above
The doping level in a zener diode is ___________ that of a crystal diode
A the same as
B less than
C more than
D none of the above
নিম্নের কোনটি p-টাইপ অর্ধপরিবাহীতে n-টাইপ অর্ধপরিবাহীর তুলনায় বেশি আছে? (Which of the following does a p-type semiconductor have more compared to an n-type semiconductor-)  
A মোট ধনাত্মক আধান (total positive charge)
B মোট আধান (total charge)
C ইলেকট্রন ঘনত্ব (density of electrons)
D হোল ঘনত্ব (density of holes)
Bulk modulus of a fluid __________ as the pressure increases.
A Remain same
B Decreases
C Increases
D None of these
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
When a pentavalent impurity is added to a pure semiconductor, it becomes
A An insulator
B An intrinsic semiconductor
C p-type semiconductor
D n-type semiconductor
In a rare coin collection, all coins are either pure gold or pure silver , and there is initially one gold coin for every three silver coins . With the addition of 10 more gold coins to the collection, the ratio of gold coins to silver coins is 1 to 2. Based on this information , how many total coins are there now in this collection (after the acquisition)?
A 40
B 50
C 70
D 90

Next steps