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1) 0. 2) root 2. 3) root 3. 4) root 7
if they run with their own kinetic energy on a road which is inclined and the road makes an angle of 30 degree with horizontal, how much distance will each of them complete ?
1) mg/k. 2) 2mg/k. 3) mg/2k. 4) mg/4k
a. 2.4×10 −2 J
b. 1.6×10 −2 J
c. 3.6×10 −2 J
2, Two large horizontal metal plates are separated by 4 mm. The lower plate is at a potential of
. What potential should be applied to the upper plate to create electric field strength of 4000 V/m upwards in the space between the plates?
3. An ac circuit consists of a voltage source v=200sin120πt and a 6μF capacitor in series. Calculate the current established in the circuit
4. Gauss’s law says that the net flux passing through a Gaussian sphere is equal to the charge enclosed divided by?
b. 1/ε 0
d. ε 0
When an object of weight 3200 N is hung at the center of the rope, the rope is observed
to sag by 50 cm. Calculate the tension in the rope.
towards an aeroplane flying at a height of 11 km. Calculate the diameter of the light patch
produced on the surface of the aeroplane