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Physics Test 10...

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  • Question 1
    4 / -1

    In the circuit shown in figure, determine the voltage V0 for the circuit network :-

  • Question 2
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    Two point charges q and –q are at positions(0, 0, d) and (0, 0, –d) respectively. What is the electric field at (a, 0, 0)?

  • Question 3
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    Six equal capacitors each of capacitance C are connected as shown in the figure. Then the equivalent capacitance between A and B is :-

  • Question 4
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    A battery has an emf of 15 V and internal resistance of 1Ω. Is the terminal to terminal potential difference less than, equal to or greater than 15 V if the current in the battery is: (i) from negative to positive terminal, (ii) from positive to negative terminal (iii) zero current?

  • Question 5
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    Find magnetic moment of a disc with uniform charge distribution 'q' and radius R when rotated about its diameter with angular velocity

  • Question 6
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    The current in the given circuit is increasing with a rate 4 amp/s. The charge on the capacitor at an instant when the current in the circuit is 2 amp will be :

  • Question 7
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    In an A.C. circuit, the instantaneous e.m.f. and current are given by

    e = 100 sin 30 t

    i = 20 sin  (30t - π/4)

    In one cycle of A.C. the average power consumed by the circuit and the wattless current are, respectively.

  • Question 8
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    A person is in a room whose ceiling and two adjacent walls are plane mirrors. How many images are formed :-

  • Question 9
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    To an observer on the earth, the stars appear to twinkle. This can be described by :-

  • Question 10
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    A diverging beam of light from a point source S having divergence angle α, falls symmetrically on a glass slab as shown. The angles of incidence of the two extreme rays are equal. If the thickness of the glass slab is t and the refractive index n, then the divergence angle of the emergent beam is

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