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Current Electri...

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  • Question 1
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    Find value of current in circuit diagram

  • Question 2
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    A source of e.m.f. E= 15 v and having negligible internal resistance is connected to a variable resistance so that the current in the circuit increase with time as I = 1.2t + 3. Then total charge will flow in first seconds will be:

  • Question 3
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    Kirchhoff's Loop rule is a direct consequence of law of conservation of

  • Question 4
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    A meter bridge shown in fig.is balanced.what is the value of resistance X.

  • Question 5
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    A circuit connected to an ac source of emf $$e = e_0 \sin (100 t)$$ with t in seconds, gives a phase difference of $$\dfrac{\pi}{4}$$ between the emf e and current i. Which of the following circuits will exhibit this ?

  • Question 6
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    Conductivity of water (in $$\Omega ^{-1}\,cm^{-1}$$) is 

  • Question 7
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    In measuring a resistant using metre bridge, the resistance in the gaps are interchanged to minimize error due to

  • Question 8
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    If the length of a potentiometer wire is increased by keeping constant potential difference across the wire, then _______.

  • Question 9
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    Three $$2\Omega$$ resistors are connected to form a triangle. The resistance between any two corners is?

  • Question 10
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    Directions For Questions

    Each plate of a parallel-plate air capacitor has area $$S=5\times 10^{-3}m^2$$ and distance between the plates $$d=8.80$$mm. Plate A has positive charge $$q_1=+10^{-10}C$$ and plate B has charge $$q_2=+2\times 10^{-10}C$$. A battery of e.m.f. E$$=10$$V has its positive terminal connected to plate A and negative terminal to plate B.(Given $$\varepsilon_0=8.8\times 10^{-12}Nm^2C^{-2}$$).

    ...view full instructions

    Charge supplied by the battery is?

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