Exercise: Electronic Devices And Circuits

Questions for: Electronic Devices And Circuits

The rating of a transformer to deliver 100 watts of D.C. power to a load under half wave rectifier will be nearly
A:
1 kVA
B:
350 VA
C:
175 VA
D:
108 VA
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
In an ideal junction transistor the impurity concentration in emitter (E ), base (B) and collector (C) is such that
A:
E > B > C
B:
B > C > E
C:
C > E > B
D:
C = E = B
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
In a full wave rectifier, the current in each of the diodes flows for
A:
the complete cycle of the input signal
B:
half cycle of the input signal
C:
less than half cycle of the input signal
D:
one-fourth cycle of the input signal
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The output v-i characteristics of enhancement type MOSFET has
A:
only an ohmic region
B:
only a saturation region
C:
an ohmic region at low voltage value and a saturation region at high voltage
D:
a saturation region at low voltage value and an ohmic region at high voltage
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️

Assertion (A): Alkali metals are used as emitters in phototubes.

Reason (R): Alkali metals have low work functions.

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 a correct explanation of A
C:
A is true but R is false
D:
A is false but R is true
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz