# Resistance Level MCQ’s

This set of Analog Electronic Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Resistance Level”.

1. The reciprocal of slope of current-voltage curve at Q-point gives _____________

a) AC resistance

b) Nominal resistance

c) Maximum dynamic resistance

d) Minimum impedance

2. As the slope of I-V graph at the Q point increases, AC resistance will _____________

a) Increase

b) Decrease

c) Either increase or decrease

d) Neither increase nor decrease

3. What is quiescent point or Q-point?

a) Operating point of device

b) The point at which device have maximum functionality

c) The point at which current equal to voltage

d) The point of V-I graph where slope is 0.5

4. Static resistance of a diode is ____________

a) Resistance at the q-point, ΔV_{D}/ΔI_{D}

b) Maximum AC resistance

c) Minimum AC resistance

d) Resistance at operating point, V_{D}/I_{D}

5. After cut-in voltage AC resistance of diode ____________

a) Slightly decreases

b) Decreases exponentially

c) Slightly increases

d) Increases exponentially

6. Determine DC resistance of a diode described by characteristic graph at I_{D} = 10mA.

a) 90 Ω

b) 111.1 Ω

c) 101.0 Ω

d) 100 Ω

7. Average AC resistance and dynamic resistance are ____________

a) Always Equal

b) Never equal

c) Both represents same quantity

d) Calculated from V-I graph

8. DC resistance of diode is measured at ____________

a) Knee current

b) Cut-in voltage

c) Q-point

d) Reverse breakdown point

9. For a diode, at 10mA DC resistance is 70Ω. The voltage corresponding to 10mA will be ____________

a) 0.5V

b) 0.6V

c) 0.7V

d) 0.8V

10. Calculate the DC resistance of diode at VD= -10V from the characteristic graph given below.

a) 1MΩ

b) 10MΩ

c) 15MΩ

d) 5MΩ

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