Exercise: Materials And Components

Questions for: Materials And Components

In a true valence crystal, the bonding between the atoms is accomplished by the sharing of valence electrons.
A:
True
B:
False
C:
D:
Answer: A

Sharing of valence electons is a characteristic of true valence crystal.

📖
📝
💬
👁️
The number of valence electrons in donor impurity are
A:
5
B:
4
C:
3
D:
1
Answer: A

Donor impurity has 5 valence electrons (while silicon has 4 valence electrons).

Hence donor impurity can donate electrons.

📖
📝
💬
👁️
The apparent capacitance at a high angular frequency ω of an air cored capacitor having capacitance C and inductance L is given by
A:
B:
C:
D:
Answer: B

The combination can be represented as L and C in series.

.

Therefore, .

📖
📝
💬
👁️
If a piece of wood is placed in a magnetic field
A:
the magnetic field will not be affected
B:
the magnetic lines of force will bend towards the piece
C:
the magnetic lines of force will bend away from the piece
D:
the flux may increase or decrease
Answer: A

Wood is non-magnetic.

📖
📝
💬
👁️

Assertion (A): If E is available energy state eV and EF is Fermi level, then probability of energy state E being occupied = 0.5.

Reason (R): .

A:
Both A and R are true and R is correct explanation of A
B:
Both A and R are true but R is not correct explanation of A
C:
A is true but R is false
D:
A is false but R is true
Answer: B

E = EF, f(E) = 0.5.

📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz