Value of εr for various dielectrics is always________________?

Related Mcqs:

1. If the value of collector current IC increases, then the value of VCE ______________?

   A. Remains the same
   B. Decreases
   C. Increases
   D. None of the above

2. In a certain five-step R/2R ladder network, the smallest resistor value is 1 kΩ. The largest value is___________?

   A. Indeterminable
   B. 2 kΩ
   C. 10 kΩ
   D. 20 kΩ

3. The value of the capacitance depends upon the________________?

   A. voltage applied
   B. thickness of the capacitor plates
   C. geometry of the capacitor
   D. dinsity of the capacitor plates

4. In the case of a lossy capacitor, its series equivalent resistance value will be_______________?

   A. small
   B. very small
   C. large
   D. zero

5. Which of the following material has least value of dielectric constant ?

   A. Ceramics
   B. Oil
   C. Glass
   D. Paper

6. If the co-efficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails ?

   A. 0.3
   B. 0.26
   C. 0.225
   D. 0.16

7. For faithful amplification by a transistor circuit, the value of VBE should_____________for a silicon transistor?

   A. Be zero
   B. Be 0.01 V
   C. Not fall below 0.7 V
   D. Be between 0 V and 0.1 V

8. In voltage divider bias, operating point is 3 V, 2 mA. If VCC = 9 V, RC = 2.2 kO, what is the value of RE ?

   A. 2000 O
   B. 1400 O
   C. 800 O
   D. 1600 O

9. In the design of a biasing circuit, the value of collector load RC is determined by__________________?

   A. VCE consideration
   B. VBE consideration
   C. IB consideration
   D. None of the above

10. An RC high-pass filter consists of an 820 Ω resistor. What is the value of C so that Xc is ten times less than Rat an input frequency of 12 kHz?

    A. 81 µF
    B. 161 µF
    C. 0.161 µF
    D. 220 µF