1
KCET 2025
MCQ (Single Correct Answer)
+1
-0

Which of the following statements is not true?

A
Work done to move a charge on an equipotential surface is not zero
B
Equipotential surfaces are the surfaces where the potential is constant
C
Equipotential surfaces for a uniform electric field are parallel and equidistant from each other
D
Electric field is always perpendicular to an equipotential surfaces.
2
KCET 2025
MCQ (Single Correct Answer)
+1
-0
Which of the following is a correct statement?
A
Gauss's law is true for any open surface
B
Gauss's law is not applicable when charges are not symmetrically distributed over a closed surface.
C
Gauss's law does not hold good for a charge situated outside the Gaussian surface.
D
Gauss's law is true for any closed surface
3
KCET 2024
MCQ (Single Correct Answer)
+1
-0

A body has a charge of $-3.2 \mu \mathrm{C}$. The number of excess electrons will be

A
$5.12 \times 10^{25}$
B
$5 \times 10^{12}$
C
$2 \times 10^{13}$
D
$5.12 \times 10^{13}$
4
KCET 2024
MCQ (Single Correct Answer)
+1
-0

A point charge $A$ of $+10 \mu \mathrm{C}$ and another point charge $B$ of $+20 \mu \mathrm{C}$ are kept 1 m apart in free space. The electrostatic force on $A$ due to $B$ is $F_1$ and the electrostatic force on $B$ due to $A$ is $\mathbf{F}_2$. Then

A
$\mathrm{F}_1=-2 \mathrm{~F}_2$
B
$\mathrm{F}_1=-\mathrm{F}_2$
C
$\mathrm{2 F_1=-F_2}$
D
$\mathrm{F}_1=\mathrm{F}_2$
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