BSc Physics SEM II 2021 2022 2022 PHYSICS II Question Paper - Mumbai University | munotes

Questions asked in this paper

• ii) figures to the right indicate full marks

1. Q1 A) Select the correct option (50M) LCR resonant circuit, the impedance of the circuit is 2)For an ideal constant voltage source, internal resistance is 3)The efficiency of full wave rectifier is
2. Q4 The universal gate is
3. Q1 OR i) NAND iv)AND
4. Q5 Magnetic field outside a solenoid is
5. Q6 The electric field inside a spherical shell of uniform surface charge density Is
6. Q1 Zero
   • iii)directly proportional io distance from the center iv) none
7. Q7 The NAND and NOR gate followed by.gate
   • i) AND i1) OR NOT EX-OR
8. Q8 According to the Reciprocity theorem, position of voltage source and ammeter in a circuit can 9)In pure resistive circuit
   • i) Current lags behind the by ii) Current lags behind the e.m.f. by is in phase with the iv)none of these 10)The r.m.s.value of a sinusoidal A.C. current is equal to its value at an angle of .degree
9. Q1 30 45 60 iv) is used for comparing capacitance of capacitor is used to determine the frequency’ in terms of known resistances and 90 marks
10. Q13 Under balanced condition the current flowing through the detector is equal
    • i) Difference between the current flowing in the adjacent arms
    • ii)sum of the current flowing in the adjacent arms iv) LA
11. Q14 To balance AC bridge the condition in terms of phase angle is
    • i) = iii) iv) 0104 = 6203
12. Q15 Zener diode is always connected in
    • i) forward bias reverse bias iii) both (i) and (ii) iv) none of
13. Q16 Diode can be used as
    • i)an oscillator 11) a rectifier iii) voltage regulator iv) an amplifier
14. Q17 Superposition theorem is applied only to circuit having equivalent of a circuit consist of a single equivalent current source I, and a single
15. Q19 The magnetic quantity 2())Work done by magnetic field for revolving particle of charge q in circular path will be The electric potential V is given as a function of distance m by of electric field at is
16. Q23 The potential is constant in a certain region of space. The value of E in that region Is
17. Q1 Finite iii) zero iv) depend on the location of the point
18. Q24 Ina circular coil coil carrying electric current , if the number of turns of the coil is doubled the magnetic fleld Is 25)A solenoid bent in to a circular form by keeping two ends together is
19. Q2 Attempt any sinusoidal voltage is applied across a series L-R combination. Derive the expression for the current lags the applied voltage. Draw the phasor diagram for voltage in LR circuit 3 marks
20. Q2 Draw Maxwell L/C bridge and obtain the condition for balance the bridge
21. Q3 Show that in the case of AC circuits, while the potential drop across capacitor lags the current by the potential drop across inductor leads the current by phasor diagram
22. Q4 Describe general AC bridge. Obtain the condition for balanced bridge
23. Q5 De Sautys bridge consists of resistance 2400ohms in one arm, second arm consists of capacitance of 0.01 F. Third arm consists of resistance 800 ohms, whereas fourth arm consists of unknown capacitor. If the bridge is balanced Find the capacitance of unknown capacitor?
24. Q3 Attempt any 3 (15M) is rectifier efficiency? Obtain its expression for full wave rectifier 2)What is universal gate? Explain NAND gate as a universal gate
25. Q3 State and prove Norton’s theorem
26. Q4 Explain the truth table of full adder with their logical circuit diagram 5)State & prove Demorgan’s theorem
27. Q4 Attempt any 3 (15M) 1)Deduce an exnression for the magnetic field at any point on the axis of circular current carrying conductor, Hence the magnetic field at the center of coil
28. Q2 Show that the energy stored in continuous charge distribution is W= 3) Find the work done in moving a charge of +1C from (2,0)m to (0,2)m long a straight line path these two points in the electric field, E=(2xi-4yj)N/C 4)What is solenoid? Give an expression for the magnetic field at a point inside solenoid the
    • S)A straight long conductor carries a current of Calculate the magnetic field at a distance 10cm from the conductor
29. Q5 Attempt any 1 (5M) )State and explain Biot-sevarts law
30. Q2 Show that the rms voltage of a sinusoidal voltage, sin wt is equal to Also show that its mean value over half a cycle is equal to
31. Q3 Draw the diagram for Half adder using gaie and write a truth table for it

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