PHYSICS CLASSES

(1)     State the condition when the magnitude of velocity and speed of an object are equal. (2)     Under what condition will the distance and displacement of moving object have the same magnitude?  TO DOWNLOAD ASSIGNMENT CLICK HERE

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1.A wire of resistivity  'P'  is stretched to twice its length .will be its new resistivity ? 2. What happens to the power dissipation, if the value of electric current passing through a resistance is  halved ? 3. Two conductors , one having resistance R and another 2R, are connected in turn across a d.c. source .If the rate of heat produced in the two conductors is Q 1 and Q 2 Respectively, what is the value of of  Q 1 /Q 2 ? 4. How does the drift velocity of electrons in a metallic conductor very with increase in temperature ? TO DOWNLOAD FULL ASSIGNMENT CLICK HERE

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1             (1)     Find the area of circle of radius 3.458cm up to correct significant figures. (                          (2)The wavelength ‘λ’ depends mass M of the moving particle its velocity v and planks                           constant  ‘h’ . Show the relationship between them.                               (3)To determine acceleration due to gravity ,the time of 20 oscillations of a simple                           pendulum of   length 100 cm was observed to be 40 s . calculate the value of ‘g’ and                   maximum percentage error in the measured value  of ‘g’ .                              TO DOWNLOAD FULL ASSIGNMENT CLICK HERE

      1.A metal plate is introduced between the plates of a charged parallel plate capacitor , what         is the effect on capacitance of the capacitor?              2. Net capacitance of three identical capacitance in series is 1F , what will be net                          capacitance if  they are connected in parallel?        TO DOWNLOAD COMPLETE ASSIGNMENT   CLICK HERE