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F = (150/p^2)ap^ + 10 a(phi)^
(a) zero inside the cube
(b) zero outside the cube
(c) zero on the surface of the cube
(d) zero nowhere.
The value of ∮r/r^3.da on a spherical surfacer r = R is
(a) 4ΠR2
(b) Zero
(c) 4Π
(d) infinity
A charged rod is touched to a small metallic sphere placed at the origin. This is done at time t = 0. A sensitive field detector detects the electric fields at points 10 cm away and 50 cm away at time t = 1 nanosecond.
The expression of Coulomb’s law can match the measured value
(a) at 10 cm point but not at 50 cm point
(b) at 50 cm point but not at 10 cm point
(c) both at 50 cm point and at 10 cm point
- (d) neither at 50 cm point nor at 10 cm point
my question contains a picture and I can’t upload a picture but you can type ( electric force using vector components. Calculate the net electrostatic force on charge q2 shown ) if you clicked on the images you will find a one duplicate picture the lines in the picture is pink. Hope anyone solve it with steps for me.
