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Number of electrons in the outermost orbit of the element of atomic number 15 is:
(1) 1
(2) 3
(3) 5
(4) 7
Ans: 5
Production of electricity by light: The Photovoltaic Cell or Solar Cell. A photovoltaic cell generates an emf when light falls onto it. Several forms of photovoltaic cell exi
At 200.0 K, silicon has 3.79 x 10 -18 free electrons per atom. How many free electrons/cm 3 are there in silicon at this temperature?
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a beam of electron is incident on barrier 6eV high and 0.2 nm wide. find the energy in eV these should have if 1% of them are to get through the barrier.
define definition priniciples?
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Can we take a negative test charge to find electric field?
One side of impregnated paper capacitors is sprayed with metal. When such paper is rolled, its gives higher capacitance for a given value. This capacitor has a self healing proper
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why laser show beat phenomenon while LIGHT do not.
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