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VITEEE
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Physics
List of top Physics Questions asked in VITEEE
The centre of a wheel rolling on a plane surface moves with a speed $v_{ 0}$. A particle on the rim of the wheel at the same level as the centre will be moving at speed
VITEEE - 2013
VITEEE
Physics
rotational motion
The dimensional formula of magnetic flux is
VITEEE - 2013
VITEEE
Physics
Dimensional Analysis
Mobilities of electrons and holes in a sample of intrinsic germanium at room temperature are $0.36\,m^2V^{-1}s^{-1}$ and $0.17\,m^2V^{-1}s^{-1}$. The electron and hole densities are each equal to $2.5 \times 10^{19} m^3$. The electrical conductivity of germanium is
VITEEE - 2013
VITEEE
Physics
Semiconductor electronics: materials, devices and simple circuits
If the work done in turning a magnet of magnetic moment $M$ by an angle of 90$^{\circ}$ from the magnetic meridian is $n$ times the corresponding work done to turn it through an angle of 60$^{\circ}$, then the value of $n$ is
VITEEE - 2013
VITEEE
Physics
Magnetism and matter
Charge passing through a conductor of cross-section area
$A=0.3 \,m ^{2}$
is given by
$q=3 t^{2}+5 t+2$
in coulomb, where
$t$
is in second. What is the value of drift velocity at
$t=2 s ?$
(Given,
$\left.n=2 \times 10^{25} / \,m ^{3}\right)$
VITEEE - 2012
VITEEE
Physics
Current electricity
$A$
and
$B$
are two metals with threshold frequencies
$1.8 \times 10^{14}\, Hz$
and
$2.2 \times 10^{4}\, Hz$
Two identical photons of energy
$0.825 \,eV$
each are incident on them. Then photoelectrons are emitted by (Take
$\left.h=6.6 \times 10^{-34} \,J - s \right)$
VITEEE - 2012
VITEEE
Physics
Photoelectric Effect
A direct
$X$
-ray photograph of the intenstines is not generally taken by radiologists because
VITEEE - 2012
VITEEE
Physics
Dual nature of matter
Two capacitors of capacities
$1 \, \mu F$
and
$C \, \mu F$
are connected in series and the combination is charged to a potential difference of
$120 \,V$
. If the charge on the combination is
$80 \, \mu C$
, the energy stored in the capacitor of capacity
$C$
in
$\mu J$
is
VITEEE - 2012
VITEEE
Physics
Combination of capacitors
Three resistors
$1\,\Omega , 2\,\Omega$
and
$3\,\Omega $
are connected to form a triangle. Across
$3\,\Omega$
resistor a
$3\,V$
battery is connected. The current through
$3\,\Omega$
resistor is
VITEEE - 2012
VITEEE
Physics
Resistance
A parallel plate capacitor has capacitance
$C$
. If it is equally filled the parallel layers of materials of dielectric constant
$K_1$
and
$K_2$
its capacity becomes
$C_1$
. The ratio of
$C_1 $
and
$C$
is
VITEEE - 2012
VITEEE
Physics
Capacitors and Capacitance
A square loop, carrying a steady current
$I$
, is placed in horizontal plane near a long straight conductor carrying a steady current
$I_{1}$
at a distance
$d$
from the conductor as shown in figure. The loop will experience
VITEEE - 2012
VITEEE
Physics
Current electricity
The potential of a large liquid drop when eight liquid drops are combined is 20 V. Then the potential of each single drop was
VITEEE - 2012
VITEEE
Physics
Surface tension
The kinetic energy of an electron get tripled then the de-Broglie wavelength associated with it changes by a factor
VITEEE - 2012
VITEEE
Physics
Dual nature of matter
In the Wheatstone's network given,
\(P = 10\,\Omega , Q = 20\,\Omega , R = 15 \,\Omega , S = 30 \,\Omega\)
, the current passing through the battery (of negligible internal resistance) is
VITEEE - 2012
VITEEE
Physics
Kirchhoff's Laws
In photoelectric emission process from a metal of work function $1.8 \,eV,$ the kinetic energy of most energetic electrons is $0.5 \,eV$. The corresponding stopping potential is
VITEEE - 2012
VITEEE
Physics
Photoelectric Effect
In hydrogen a atom, an electron is revolving in the orbit of radius $0.53\,�$ with $6.6 \times 10^{15}$ radiations/s. Magnetic field produced at the centre of the orbit is
VITEEE - 2012
VITEEE
Physics
Magnetic Field Due To A Current Element, Biot-Savart Law
In a common emitter amplifier the input signal is applied across
VITEEE - 2012
VITEEE
Physics
Transistors
In the figure shown, the magnetic field induction as the point $O$ will be
VITEEE - 2012
VITEEE
Physics
Faradays laws of induction
A coil of resistance
$10\,\Omega$
and inductance
$5\, H$
is connected to a
$100\, V$
battery. Then the energy stored in the coil is
VITEEE - 2011
VITEEE
Physics
Alternating current
An electromagnetic wave going through vacuum is described by
$E=E_{0}\,\sin \left(kx-\omega t\right)$
Which of the following is/are independent of the wavelength?
VITEEE - 2011
VITEEE
Physics
Electromagnetic waves
An ammeter reads upto
$1A$
. Its internal resistance is
$0.81\, \Omega$
. To increase the range to
$10\, A$
, the value of the required shunt is
VITEEE - 2011
VITEEE
Physics
Electrical Instruments
An inductive circuit contains a resistance of
$10\, \Omega$
and an inductance of
$2.0\, H$
. If an
$AC$
voltage of
$120\, V$
and frequency of
$60\, Hz$
is applied to this circuit, the current in the circuit would be nearly
VITEEE - 2011
VITEEE
Physics
AC Voltage
As shown in the figure, charges
$+ q$
and
$- q$
are placed at the vertices
$B$
and
$C$
of an isosceles triangle. The potential at the vertex
$A$
is
VITEEE - 2011
VITEEE
Physics
Electrostatic potential
An infinite number of charge, each of charge
$1\, \mu C$
are placed on the x-axis with coordinates
$x=1, 2, 4, 8, ....... \infty.$
If a charge of
$1\,C$
is kept at the origin, then what is the net force acting on
$1\,C$
charge?
VITEEE - 2011
VITEEE
Physics
Electric Charge
Dimensions of a block are $1\,cm � 1\,cm � 100\,cm$. If specific resistance of its material is $3\times 10^{-7} \,\Omega\, m$, then the resistance between the opposite rectangular faces is
VITEEE - 2011
VITEEE
Physics
Current electricity
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