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Which of the following methods is suitable for preventing an iron frying pan from rusting?
A battery of emf 12 V and internal resistance 4 ohm is connected to a resistor. If the current in the circuit is 0.6 A, what is the resistance of the re...
The magnetic field lines around a straight current carrying conductor are
Which of the following vitamin contains Cobalt?
What is the chemical symbol for Gold?
The storage battery of a car has an emf of 15 V. If the internal resistance of the battery is 0.5 Ω, what is the maximum current that can be drawn from...
Which of the following statements about the centre of mass (COM) of a system is always true?
Which of the following acid proves to be useful for the purification of gold and silver?
During electrolysis the reaction at anode is?
An object is placed at a distance of 10 cm in front of a double convex lens made of glass of refractive index 1.5. Both the radii of curvature of the l...
