Physics FSC Part 2 Online MCQ's Test With Answers

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Physics FSC Part 2 Online MCQ's Test

Sr. # Questions Answers Choice
1 Minimum number of semi conductor diodes required for full wave rectification are. 1 2 3 4
2 _______ is the building block of every electronic circuit. Semi conductor diode Resistor Capacitor Amplifier
3 A diode characteristics curve is a plot between Current and resistance Voltage and time Voltage and current Current and time
4 Depletion region carries. -ve charge +ve charge Ions No charge
5 The ratio of potential barriers of Ge to Si at room temperatrue is. 7:3 1:3 2:5 3:7
6 A PN junction can not be sued a. Rectifier Amplifier Detector LED
7 A diode characteristic curve is a plot between Current and time Voltage and time Voltage and current Forward voltage and reverse voltage
8 Which factor does not affect the conductivity of PN-Junction diode. Doping Temperature Voltage Pressure
9 When a PN-Junction is reverse biased the depletion region is. Widened Narrowed Normal None of these
10 Reverse current flows due to Majority charge carriers Minority charge carriers Electrons Holes
11 The potential difference across the depletion region of germanium is. 0.3 V 0.5 V 0.7 V 0.8 V
12 The potential barrier for silicon is. 0.7 V 0.5 V 0.3 V 0.9 V
13 Domains are existed in Ferromagnetic materials Paramagnetic materials Semi conductors Diamagnetic materials
14 Which of the following has least hysteresis loop area. Steel Wrought Iron Soft Iron Cobalt
15 Very weak magnetic field produced by brain can be detected by MRI CAT scans Squid CRO
16 The most suitable metal for making permanent magnet is. Iron Aluminium Steel Copper
17 A solid having regular arrangement of molecules throughout its structure is called. Amorphous solid Polymeric solid Crystalline solid Glassy solid
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