When a person standing barefoot on the ground comes in contact with a high-power line, he is likely to
A. experience a total shock
B. experience a mild shock
C. experience a moderate shock
D. remain unaffected
A. experience a total shock
B. experience a mild shock
C. experience a moderate shock
D. remain unaffected
A. experience a total shock
A parrot comes and sits on a bare high-power line. It will
A. experience a mild shock
B. experiences a strong shock
C. get killed instantaneously
D. not be affected at all
Figure shows a point charge + Q, located at a distance R/2 from the centre of a spherical metal shell. Draw the electric field lines for the given system.
Charge in motion within the Gaussian surface gives changing physical quantity
(A) Electric field
(B) Electric flux
(C) Charge
(D) Gaussian surface area
When a body charges by conduction, its mass
(A) Remains same
(B) Increases
(C)Decreases
(D)Increase or decrease
Two charges q and –3q are placed on x-axis separated by distance d. Where a third charge 2q should be placed such that it will not experience any force ?
Derive an expression for electric field of a dipole at a point on the equatorial plane of the dipole. How does the field vary at large distances?
A point charge +Q is placed in the vicinity of a conducting surface. Draw the electric field lines between the surface and the charge.
The given figure shows tracks of three charged particles in a uniform electrostatic field. Which of them is probably an α-particle?
(A) 1
(B) 2
(C) 3
(D) None of the above
The SI unit of inductance is the henry. It can be written as
(a) weber/ampere
(b) volt-second/ampere
(c) joul/(ampere)²
(d) ohm-second
A current loop placed in a magnetic field behaves like a
a) Magnetic substance
b) Magnetic pole
c) Magnetic dipole
d) all true
what is the angle between an electric dipole moment and then electric field strength due to it on its equatorial line?
(A) \(0^\circ\)
(B) \(90^\circ\)
(C) \(180^\circ\)
(D) None of these
There is a point charge q located at the center of a cube. What is the electric flux of this point charge, through a face of the cube?
(A)q/ε₀
(B) q/6ε₀
(C) q/3ε₀
(D)It will depend upon the size of the cube
In a circuit with a coil of resistance 3Ω, the magnetic flux changes from 1.0 Wb to 10.0 Wb in 0.3 s. The charge that flows in the coil during this time is
(a) 2.0 C
(b) 3.0 C
(c) 4.0 C
(d) 1.0 C