Two infinite plane parallel sheets separated by a distance 'd' have equal and opposite uniform charge densities σ\sigmaσ . Electric field at a point between the sheets is
Zero
σ2∈0\frac{\sigma}{2\in_0}2∈0σ
Depends upon the location
of the point
σ∈0\frac{\sigma}{\in_0}∈0σ
Q.6.
The intersection of field lines is due to
attraction
repulsion
it is not possible
both attraction and repulsion
Q.7.
What quantity remains the same everywhere between two parallel plates?
Electric Field
Electric Potential
Electric Potential Energy
Speed
Q.8.
How do electric field lines represent the magnitude of an electric field?
Length of the line
With arrows
Density of lines
Width of lines
Q.9.
Fringing of field lines is due to
Uniform electric field
Non uniform electric field
Uniform charges on plates
Non uniform charges on plates
Q.10.
Electric flux is maximum at angle
45
90
180
0
Q.11.
If I triple the value of charge of a test charge the electric field will
Increase by 3
Increase by 9
Not change
Decrease by 9
Q.12.
If the net flux through a gaussian surface is zero, the following four statements could be true. Which of the statements must be true?(a) There are no charges inside the surface. (b) The net charge inside thesurface is zero. (c) The electric field is zero everywhere on the surface.(d) The number of electric field lines entering the surface equals the number leaving the surface.
There are no charges inside the surface.
The net charge inside the surface is zero.
The electric field is zero everywhere on the surface.
The number of electric field lines entering the surface equals the number leaving the surface.
Q.13.
Suppose a point charge is located at the center of a spherical surface. The electric field at the surface of the sphere and the total flux through the sphere are determined. Now the radius of the sphere is halved. What happens to the flux through the sphere and the magnitude of the electric field at the surface of the sphere?
The flux and field both increase.
The flux and field both decrease.
The flux increases, and the field decreases.
The flux decreases, and the field increases.
The flux remains the same, and the field increases.
Q.14.
The dimensional formula of electric charge is
M0L0T1A1M^0L^0T^1A^1M0L0T1A1
M0L0T−1A1M^0L^0T^{-1}A^1M0L0T−1A1
M0L0T1A−1M^0L^0T^1A^{-1}M0L0T1A−1
M0L0T−1A−1M^0L^0T^{-1}A^{-1}M0L0T−1A−1
Q.15.
Three charges, each of value Q, are placed at the vertex of an
equilateral triangle. A fourth charge q is placed at the centre of the
triangle. If the charges remains stationery then, q = ______
Q/√2Q/√2Q/√2
−Q/√3-Q/√3−Q/√3
−Q/√2-Q/√2−Q/√2
Q/√3Q/√3Q/√3
Q.16.
Electric potential energy is measured in units of:
Joules
joules per coulomb, or volts.
ohms.
amperes.
Q.17.
Since the electric field and the area are vectors, they have:
magnitude
direction
quantity
Both A & B
Q.18.
“The total electric flux through any closed surface is equal to the total (net) electric charge enclosed by the surface, divided by e0”
Faraday's Law
Coulomb's Law
Gauss's Law
Volta'sLaw
Q.19.
Who is attributed with the idea "An electric field is measurable effect generated by any charged object".
Faraday
Coulomb
Volta
Ampere
Q.20.
When is the Electric Flux zero? (Check all that apply).
If inside the box there are equal magnitude charges with an opposite sign.
If the charges are outside the box.
If there are no charges inside the box.
All of above
Support mcqgeeks.com by disabling your adblocker.
Please disable the adBlock and continue. Thank you.