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Free Online Mock Physics Multiple Choice Test on Electricity effects
Sub Category : Electricity effects Test : 4 Time Left :
1)Internal resistance of a cell does not depend on
(1) Distance between electrodes (2) Concentration of electrolyte (3) Area of electrodes dipped in electrolyte (4) E.M.F. of the cell
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2) The e.c.e. of a metal is 3.3 Ã- 10-7 kg/C. The mass of the metal liberated at the cathode when a 3 A current is passed for 2 sec will be (1) 1.1 Ã- 10 power-7 kg (2) 6.6 Ã- 10 power-7 (3) 9.9 Ã- 10 power-7 kg (4) 19.8 Ã- 10 power-7 kg
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3)The relation between the Faraday constant F, chemical equivalnet E and the electro chemical equivalent Z is
(1) F = EZ (2) Z = FE (3) EFZ = 1 (4) E = FZ
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4) A battery of e.m.f. 10 V and internal resistance 0.5 Ome is connected across a variable resistance R. The value of R for which the power delivered in its is maximum is given by (1) 2.0 Ome (2) 0.25 Ome (3) 1.0 Ome (4) 0.5 Ome
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5)An electric charge in uniform produces
(1) Neither electric nor magnetic field (2) An electric nor magnetic field (3) A magnetic field only (4) Both electric and magnetic fields
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