WorksheetsMEC523 Quiz 1
Total questions: 20
Worksheet time: 12mins
Find the current in the circuit. [CO1/PO1]
2 A
2.2 A
8 A
2.5 A
In a series circuit, which of the parameters remain constant across all circuit elements such as resistor, capacitor and inductor? [CO1/PO1]
Voltage
Current
Both voltage and current
Neither voltage nor current
Voltage across the 60 ohm resistor is______. [CO1/PO1]
72 V
0 V
48 V
120 V
Find the voltage across the 6 ohm resistor. [CO1/PO1]
150 V
181.6 V
27.27 V
54.48 V
If two bulbs are connected in parallel and one bulb blows out, what happens to the other bulb? [CO1/PO1]
The other bulb blows out as well
The other bulb continues to glow with the same brightness
The other bulb glows with increased brightness
The other bulb stops glowing
The voltage across the open circuit is? [CO1/PO1]
100 V
Infinity
0 V
90 V
The total resistance between A and B are? [CO1/PO1]
0.2 Ohm
5 Ohm
20 Ohm
40 Ohm
Find the value of v if v1=20V and value of current source is 6A. [CO1/PO1]
10 V
11 V
12 V
13 V
Find the current in the 4 ohm resistor. [CO1/PO1]
5 A
0 A
20 A
2.86 A
The Thevenin voltage is the__________. [CO1/PO1]
Open circuit voltage
Short circuit voltage
Open circuit and short circuit voltage
Neither open circuit nor short circuit voltage
Thevenin’s theorem is true for __________. [CO1/PO1]
Linear networks
Non-Linear networks
Both Linear networks and Non-Linear networks
Neither linear networks nor non-linear networks
Calculate the current across the 4 ohm resistor. [CO1/PO1]
1.23 A
2.22 A
0.67 A
0,86 A
LED (a semiconductor device) is an abbreviation that stands for ___________. [CO1/PO1]
License for Energy Detector
Lost Energy Device
Light Energy Device
Light Emitting Diode
The ______________ diode is designed to operate under reverse bias in the breakdown region and used as a voltage regulator. [CO1/PO1]
Zener
Light Emitting
Laser
semiconductor
When a diode is reverse biased then the barrier height. [CO1/PO1]
decreases and depletion regions widens
decreases and depletion regions narrows
increases and depletion regions widens
increases and depletion regions narrows
Calculate static resistance RD of a diode having ID = 30 mA and VD = 0.75 V. [CO1/PO1]
25 Ohm
40 Ohm
250 Ohm
1 kOhm
The diode _____. [CO1/PO1]
is the simplest of semiconductor devices
has characteristics that closely match those of a simple switch
is a two-terminal device
all of these
What is the range of the operating voltage level for LEDs? [CO1/PO1]
5 - 12 mV
1.7–3.3 V
5–12 V
20–25 V
The diffused impurities with _____ valence electrons are called donor atoms. [CO1/PO1]
4
3
5
0
In what state is a silicon diode if the voltage drop across it is about 0.7 V? [CO1/PO1]
No bias
Forward bias
Reverse bias
Zener region
