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1. Derive an expression for the Electric field at a point on the (i) axial line and (ii) equatorial line of an electric dipole 2. Describe the principle construction and working of Van de Graff Generator. 3. State Gauss’ theorem and apply it to find the electric field at a point due to 1. A point charge 2. A line of charge 3. A plane sheet of charge 4. A charged spherical conducting shell 4. Derive expression for the potential energy of a system of point charges. 5. Derive expression for the tor

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1.
Derive an expression for the Electric field at a point on the (i)
axial line and (ii) equatorial line of an electric dipole
2.
Describe the principle construction and working of Van de Graff
Generator.3.
State Gauss’ theorem and apply it to find the electric
field at a
point due to
1.
A point charge
2.
A line of charge
3.
A plane sheet of charge
4.
A charged spherical conducting shell
4.
Derive expression for the potential energy of a system of point
charges.
5.
Derive expression for the torque on a dipole in a uniform electric
field.6.
Derive expression for the work done in turning a dipole in a
uniform electric field.7.
Derive an expression for the potential energy of a dipole in a
uniform electric field.8.
Explain the principle of a parallel plate capacitor
9.
Derive an expression for the capacitance of a parallel plate
capacitor.
10. Derive an expression for the effective capacitance
when three capacitors are connected in (i) series (ii)
parallel
11. Derive an expression for the energy stored in a
parallel plate capacitor.
12. Derive an expression for the loss of energy when
two conductors at different potentials are brought into
electrical contact. Account for this energy.
13. Derive and expression for the energy density of a
parallel plate capacitor.
14. Derive I = nAeV
d
15. Define drift velocity and derive an expression for
it.16.
Deduce Ohm’s law from elementary concepts.
17.
State Biot Savart’s Law and apply it to find the
magnetic field at a point due to long straight conductor
carrying current
18.
State Ampere’s
circuital theorem and apply it to
find the magnetic field inside a (i) solenoid (ii) toroid
19. State the Principle of a potentiometer and Explain
how is it used (i) to determine the internal resistance of
a primary cell (ii) to compare the emfs of two primary
cells20.
State Kirchhoff’s laws and apply it to derive
Wheatstone’s bridge principle.
21. Explain how will you use a metre bridge to find the
resistance of a given resistor wire?
22.
Describe the elements of earth’s magnetic field.
23. Compare the properties of para dia and
ferromagnetic substances.
24. Derive an expression for the effective
resistance when three resistors are connected in (i)
series (ii) parallel
25. Describe the principle construction and working of
CYCLOTRON. Derive an expression for cyclotron
frequency. Why electrons cannot be accelerated in a
cyclotron?
26. Derive an expression for the force between two
straight long parallel conductors carrying constant
current and hence define one ampere.
27. Describe the principle construction and working
of Moving Coil Galvanometer.
28. Derive an expression for the torque on a current
carrying loop kept in a uniform magnetic field
29. Explain how will you convert a galvanometer into
(i) an ammeter (ii) a voltmeter
30. Define motional emf and derive an expression for
it.31. What are eddy currents? Explain its applications
32. What is self induction and self inductance? Derivean expression for the self inductance of a long solenoid
carrying current
33. Define mutual induction and mutual inductance.Derive an expression for the mutual inductance of a
pair of solenoids. What are the factors affecting the
mutual inductance of a pair of solenoids?
34. Derive an expression for the average value of ac
for a half cycle.
35. Derive an expression for the RMS value of ac
36. Explain the principle and construction of a
transformer and the various losses in a transformer.37. Derive an expression for impedance of a series
LCR circuit. Define resonance is series LCR circuit andderive an expression for resonant frequency.
38. Derive an expression for average power in an AC
circuit. Define power factor and show that the average
power consumed in a pure inductor or a pure capacitor
is zero.39. Define Q factor of resonance. Derive an expression
for Q factor.

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