Important Practice Question Available for Exam. This Questions are based on Repeated Topics and Frequently Ones with the Help of this you can Score Good Marks in Exam and you will Pass in Exam.
Get Updates on: WhatsApp YouTube Instagram
1. Attempt any SIX of the
following : 12
(a) Define permeability.
(b) Define MMF.
(c) Define form factor of an alternating
quantity.
(d) Define frequency and time period of an
alternating quality. **
(e) Define transformation ratio of
transformer. *
(f) State the EMF equation of a 1 transformer
and state the meaning of each term used. **
(g)Working & Give two applications of single phase motors. ***
(h) State Len’z law. **
(i) Define:
(i) Cycle
(ii)
Frequency *
(j) State alternating emf with mathematical
and graphical representation.
(k) Give one application each of:
(i)
Shaded pole motor
(ii)
Permanent capacitor motor
2. Attempt any THREE of the
following : 12
(a) Draw and explain B – H curve. *
(b) Draw a balanced 3-phase star connected
load. Show various line and phase values and also state the relationship
between them. *
(c) Explain the working principle & Types
of 1 transformer. **
(d) Explain the working principle of 1motor
with a neat diagram. **
(e) State: **
(i)
Self induced emf and
(ii)
Mutual induced emf with necessary equations and neat diagram.
(f) Draw power triangle. Write equations for different
powers in power triangle. **
(g) Describe the construction and working
principle of auto transformer.
3. Attempt any TWO of the
following : 12
(a) State and explain Faraday’s laws of
electromagnetic Induction. *
(b) An inductance of 0.1H and a resistance of
50 are connected in series across a 220 V, 50 Hz AC supply. Determine : (i)
Impedance (ii) Current (iii) Power factor (iv) Power Consumed *
(c) Derive the EMF equation of a 1
transformer. *
(d) Compare magnetic and electric circuit with
any six points.**
(e) Describe the operation of inductor with a
sinusoidal AC voltage as input. Draw waveform for voltage across and current
through the inductor. Draw its phasor representation **
4. Attempt any FIVE of the
following : 10
(a) Define Passive & Active component.
Give two examples.***
(b) Draw the symbol of PN-junction diode and
give two applications.***
(c) Explain & Draw the symbols of PNP and
NPN transistor. **
(d) Define PIV. *
(e) Draw the symbol of ideal voltage source
and ideal current source. **
(f) Define alpha and Beta of a transistor. *
(g) Draw reverse characteristics of zener
diode.
(h) Draw diagram showing CB configuration of
transistor*
5. Attempt any THREE of the
following : 12
(a) Define amplitude and phase of a sinusoidal
quantity.*
(b) Explain the constructional details of LED.
*
(c) Explain & Draw zener diode as a
voltage regulator.***
(d) Find the value of resistor from the given
colour code : **
(i)
Red Red Red Gold
(ii) Blue Orange Green Silver
(e) Explain with neat diagram how transistor
can be used as a switch. **
(f) Classify: (i) Resistors (ii) Capacitors
with general specifications. *
(g) Define filter. State its types. Draw any
one filter with input and output waveform.
6. Attempt any TWO of the
following : 12
(a) Differentiate between analog and digital
ICs. **
(b) Explain the working of half & Full
wave rectifier with suitable diagram. ***
(c) Draw the diagram of transistor operating
regions.
(d) (i) Compare rectifiers on the basis of
PIV, ripple factor, efficiency.
(ii) Draw circuit of p filter. Also draw
its input and output waveforms.*
(e) (i) Draw input and output characteristics
for CE configurations. *
(ii) Derive the relationship between
alpha (a) and beta (b). *
NOTE: This is Not Official MSBTE Website: We Provide Important Practice Questions for Students to Score Good Marks in Exam and this Questions is based on Important Topics of Syllabus and Repeated Ones. So, with the help of this we help student to Not get KT / or / They will Not get Fail in Exam.