Download Q.1 What is the work done in moving a charge of q C through a

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What is the work done in moving a charge of q C through a distance of 1cm on the equatorial axis of the electric
dipole?
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Given below are the tracks of 3 charges particles in uniform electric field. Which particle has highest charge to
mass ratio.
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VI characterstics curve for a resistor is observed to deviate from straight line ath for higher values of current. Why?
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Prove that current density of a given metallic conductor is directly proportional to the drift speed of the electrons.
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The variation of potential difference V with length l in case of two potentiometers X and Y is as shown in the figure.
Which of the two will you prefer in comparing emf’s of the cell and why?
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Keeping the voltage of the charging source constant, what would be the percentage change in the energy stored
in capacitor if plate separation in parallel plate capacitor is decreased by 10%?
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The flux of electric field, through closed surface S’ is found to be four times that of flux through spherical surface
S. Find the magnitude of the charge Q . Given that q1=1μC, q2=-2μC. Q3= 9.854μC.
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Define resistivity of a maetrial. Plot oa graph showing variation of resistivity with temperature for a metallic
conductor. How does one explain this behaviour using mathematical expression for resistivity of the conductor?[3]
Calculate the terminal potential difference across the cells X and Y as shown in the figure below. The cell X has an
emf 4V and internal resistance of 0.5ohm and cell Y has emf 8V and resistance 1 ohm.
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What is equipotential surface? A uniform electric field of 300N/C is directed along PQ. A, B and C are three
points in the field having x and y coordinates [in meters as shown in figure. Calculate the potential difference
between A and B and [b] between B and C.
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Q.11
Explain the theory, construction principle and working of Vande-Graff generator.
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