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In N-type materials the minority carriers are: Free electron, Holes, Protons, Mesons
The Value of Rydberg constant is : 1.0974 X 10 ^7 m-1, 1.0794 X 10 ^7 m-1, 1.0974 X 10 ^7 m-1, 1.974 X 10 ^9 m-1
The power output of a lamp is 6 w how much energy does the lamp give out in 2 mints: 3 j, 12 j, 120 j, 720 j
In laser a metastable state is of order of : 10 ^-3 S, 10 ^-6 S, 10 ^-8 S, 10 ^-10 S
The energy density of an inductor is : B^2/2?^2 0, ?/2B, ?/2B ^2, B^2/2 ?
Neutron was discovered in 1932 by : Bohr, Chadwick, Dirac, Fermi
Shunt Resistance is called : By pass resistor, Specific resistor, Reactance, Impedance
The SI unit of electric flux is : NmC-1, NmC-2, Nm2C-1, Nm2C-2
For pair production minimum energy of photo must be : 0.51 Mev, 1.02 Mev, 931 Mev, 2.10 Mev
A position is an particle of : Mass equal to electron, Charge equal to electron, Equal to mass but opposite charge electron, Mass e
How many type of modulation is : 1, 2, 3, 4
The expression of energy stored in a capacitor is given by : E = CV ^2, E = 1/2 CV ^2, E = 1/2 C^2V , E = 1/2(CV) ^2
The inductance is more in self induction than in : Air Cored coil, Iron cored, Tungsten Cored, Steel Cored
One tesla is equal to : NmA-1, Nm-1A-1, Nm-1A, Nm2A
The magnetism produced by electrons with in an atom is due to : Spin motion, Orbit motion, Spin and orbital, Vibratory motion
alpha rays of energy more then 0.5 Mev can produced : Pair production, Compoton effect, Photo electric effect, Fission process
Potential gradient is define as :  ? E/ ?V,  ? V/ ?E,  ? V/ ?E,  ? r/ ?V