Test: Gauss's Law (NCERT) - NEET MCQ

# Test: Gauss's Law (NCERT) - NEET MCQ

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Test: Gauss's Law (NCERT) - Question 1

### The surface considered for Gauss's law is called

Detailed Solution for Test: Gauss's Law (NCERT) - Question 1

The surface that we choose for the application of Gauss's law is called Gaussian surface.

Test: Gauss's Law (NCERT) - Question 2

### If  over a surface, then

Detailed Solution for Test: Gauss's Law (NCERT) - Question 2

As
where q is charge enclosed by the surface.
when 0, q = 0
i.e., net charge enclosed by the surface must be zero. Therefore, all other charges must be outside the surface. This is because charges outside the surface do not contribute to the electric flux.

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Test: Gauss's Law (NCERT) - Question 3

### If there were only one type of charge in the universe, then

Detailed Solution for Test: Gauss's Law (NCERT) - Question 3

According to Gauss's theorem in electrostatics

Here q is charge enclosed by the surface
If the charge is outside the surface, therefore qinside =0
Also,
So (b) and (c) are correct

Test: Gauss's Law (NCERT) - Question 4

A sphere encloses an electric dipole within it. The total flux across the sphere is

Detailed Solution for Test: Gauss's Law (NCERT) - Question 4

The net charge enclosed by the sphere is zero.

Test: Gauss's Law (NCERT) - Question 5

A point charge 4μC is at the centre of a cubic Gaussian surface 10 cm on edge. Net electric flux through the surfce is

Detailed Solution for Test: Gauss's Law (NCERT) - Question 5

Here, d = 4 μC = 4 x 10-6C, I = 10 cm

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