General
General
Easy
Question
Name the hardest material present in the body?
- Dentin
- Pulp
- Enamel
- None of these
The correct answer is: Enamel
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In step-up transformer, relation between number of turns in primary 
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In step-up transformer, relation between number of turns in primary and number of turns is secondary coils is
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An inductor of inductance 
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Name the largest part of the Alimentary canal?
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If 75% of a first order reaction was completed in 60 minutes, 50% of the same reaction under the same conditions would be competed in
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The rate constant of a reaction is 5.8 x 10-2 s-1 . The order of the reaction is
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In a first order reaction x→ y; if k is the rate constant and the initial concentration of the reactant x is 0.1M, then, the half life is
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Four a first order reaction, the rate constant is 6.909 min-1 the time taken for 75% convertion in minutes is
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The turn ratio of a transformers is given as 2:3. If the current through the primary coil is 
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Physics-General
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In transformer, core is made of soft iron to reduce
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An electric motor operates on a 
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An electric motor operates on a supply and a current of . If the efficiency of the motor is 30%, what is the resistance of the winding of the motor
Physics-General
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A loss free transformer has 500 turns on its primary winding and 2500 in secondary. The meters of the secondary indicate 
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An aeroplane in which the distance between the tips of the wings in 50 m is flying horizontally with a speed of 360 
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The primary winding of transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to an ac supply of 
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The primary winding of transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to an ac supply of . The secondary will have an output of
Physics-General
