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If the 0 and 1 are inputs for a NAND gate what would be the output?
jeemain
physics
class12
unit19
ch14
q81
easy
logic-gates
semiconductor-electronics
concepts
asked
Jan 30, 2014
by
meena.p
1
answer
The following circuit can be reduced to what type of a gate?
jeemain
physics
class12
unit19
ch14
q80
medium
logic-gates
semiconductor-electronics
asked
Jan 30, 2014
by
meena.p
1
answer
If there are n capacitors in parallel connected to V volt source , then energy stored is equal to
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
combination-of-capacitors
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
The NOR gate can be represented by which venn diagram ?
jeemain
physics
class12
unit19
ch14
q79
medium
asked
Jan 30, 2014
by
meena.p
1
answer
Which of the statement about NOT gate is true?
jeemain
physics
class12
unit19
ch14
q78
easy
semiconductor-electronics
concepts
logic-gates
asked
Jan 30, 2014
by
meena.p
1
answer
If the mean of $n$ observation $ 1^2, 2^2, 3^2.....n^2$ is $ \large\frac{46n}{11}$ then $n$ is equal to
jeemain
math
cbse
class11
statistics
measures-of-dispersion-(mean)
difficult
q34
asked
Jan 30, 2014
by
thanvigandhi_1
1
answer
A charge Q is placed at the corner of a cube electric flux through the cube is
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
electric-flux-and-dipole
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
In photography sodium thiosulphate is used as
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
end-applications
easy
asked
Jan 30, 2014
by
sreemathi.v
1
answer
The following logic circuit has output
jeemain
physics
class12
unit19
ch14
q77
medium
logic-gates
semiconductor-electronics
asked
Jan 30, 2014
by
meena.p
1
answer
If a charge is shifted from a low potential region to high potential region , the electric potential energy
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatic-potential
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
Which of the following are the causes of Lanthanide contraction?
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
easy
f-block
lanthanides
lanthanide-contraction
asked
Jan 30, 2014
by
sreemathi.v
1
answer
An electric dipole of moment $\;\overrightarrow{P}\;$ is lying along a uniform electric field $\;\overrightarrow{E}\;$ The work done in relating the dipole by $\;90^{0}\;is$
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
electric-flux-and-dipole
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
One of the important use of ferrous sulphate is in the
jeemain
chemistry
class12
d-and-f-block-elements
ch8
applications
easy
inorganic-chemistry
asked
Jan 30, 2014
by
sreemathi.v
1
answer
Three NAND gates are connected as shown in circuit. The logic operation corresponds to
jeemain
physics
class12
unit19
ch14
q76
medium
logic-gates
semiconductor-electronics
asked
Jan 30, 2014
by
meena.p
1
answer
In acidic medium one mole of $MnO_4^-$ accepts how many moles of electrons in a redox process ?
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
general-properties
oxidation-state
medium
asked
Jan 30, 2014
by
sreemathi.v
1
answer
Metallic sphere of radius R is charged to potential V . The charge q is proportional to
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatic-potential
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
The property exhibited by only transitional elements
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
basics
general-properties
easy
asked
Jan 30, 2014
by
sreemathi.v
1
answer
Distribution of charges is shown in figure . The flux of electric field due to these charges through the surface is
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
gausss-law
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
In first transition series, the melting point of Mn is low because
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
medium
melting-and-boiling-points
general-properties
asked
Jan 30, 2014
by
sreemathi.v
1
answer
Given the following VI-Characteristic curve of a pn-junction diode, identify what is (A) and (B)?
jeemain
physics
class12
unit19
ch14
q75
medium
junction-diodes
semiconductor-electronics
pn-junction
asked
Jan 30, 2014
by
meena.p
1
answer
Vanadium (III) oxide is a strong
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
general-properties
oxidation-state
medium
asked
Jan 30, 2014
by
sreemathi.v
1
answer
An electron is moving round the nucleus of a hydrogen atom in a circular orbit of radius r . Find the coulomb force $\;\overrightarrow{F}\;$ between the two
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
coulomb-law
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
In which of the following will the ionic radii of chromium be the smallest
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
general-properties
oxidation-state
atomic-and-ionic-radii
medium
asked
Jan 30, 2014
by
sreemathi.v
1
answer
The figure shows two capacitors of capacitance c and charged to same potential c connected in two circuits . What will be the charge on the capacitor after a time $t= cr$ from the start
jeemain
physics
class12
unit19
ch14
q74
medium
junction-diodes
semiconductor-electronics
asked
Jan 30, 2014
by
meena.p
1
answer
The transitional metal which form green compound in +3 oxidation state and yellow orange compound in +6 oxidation state is
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q70
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
Least reactive metal is
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q69
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
A $\;Q \;\mu C\;$ is placed at the centre of a cube. The flux coming from any surface will be
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
gausss-law
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
Which is most reactive metal
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q68
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
The output of the circuit across resistor R is
jeemain
physics
class12
unit19
ch14
q73
easy
junction-diodes
semiconductor-electronics
asked
Jan 30, 2014
by
meena.p
1
answer
Stainless steel does not rust because
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q67
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
Electric field and potential inside hollow charged conducting sphere are respectively
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatics-of
conductors
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
Lanthanoids are
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q66
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
If a charge q is placed at the centre of the line joining two equal charges Q such that the system is in equilibrium then the value of q is
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
force-between-multiple-charges
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
Which statement is true about the transitional elements
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q65
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
On moving a charge of 100 coulombs by 10 cm , 5 J of work is done , then the potential difference between the points is
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatic-potential
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
Presence of nitrogen in which of the following compound cannot be detected by Lassaigne's test?
jeemain
chemistry
practical-chemistry
medium
asked
Jan 30, 2014
by
mosymeow_1
1
answer
The equivalent weight of potassium permanganate for acid solution is
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q64
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
Which of the following is not true for transition metals.
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q63
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
The highest oxidation state of will be
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q62
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
In a certain region V= $\;Axy+Bx^2+Cy\;$ where A , B , C are constants . Find electric field as a function of $\;(x ,y ,z)\;.$
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatic-potential
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
Which of the following is the weakest reducing agent
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q61
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
Which of the following forms interstitial compounds
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
basics
important-compounds
interstital-compounds
asked
Jan 30, 2014
by
sreemathi.v
1
answer
Calculate the magnitude of an electric field which can just balance a deutron of mass $\;3.2\times10^{-27}\;kg$
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
electric-field
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
Transition metals are often paramagnetic owing to
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
properties
magnetic-properties
easy
asked
Jan 30, 2014
by
sreemathi.v
1
answer
Electric potential at a point P , due to a point charge q at A at distance r from P is V . Then if double of this charge is uniformly distributed on a hollow sphere of radius 2r centered at A then potential at P due to sphere is
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electric-potential
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
Variable valency is shown by
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q58
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
729 drops of same size are charged to a potential of 1 V each . If they coalesce to form a single drop , its potential would be
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatic-potential
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
Lanthanides and actinides resemble in
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q57
difficult
asked
Jan 30, 2014
by
sreemathi.v
2
answers
Which forms coloured salts.
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q56
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
The electric field in a region of space is $\;\overrightarrow{E}=5 \hat{i} +3 \hat {j}\;.$ The flux of $\;\overrightarrow{E}\;$ due to this field through an area $\;1 m^2\;$ lying in x - z plane is
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
electric-flux-and-dipole
easy
asked
Jan 30, 2014
by
yamini.v
1
answer
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