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Physics

Physics
The coil wire in the electric room heater or electric cooking heater is called ________

Cells
Circuit
Filament
Element

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Physics
Working of safety fuses depends upon1. magnetic effect of the current2. chemical effect of the current3. magnitude of the current4. heating effect of the currentSelect the correct answer using the code given below.

4 only
1, 2, 3 and 4
3 and 4 only
1, 2 and 3 only

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Physics
The domain theory of magnetism applies to

Silver
Cobalt
Copper
Aluminium

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Physics
The commonly used coolant in refrigerators is

Oxygen
Freon
Nitrogen
Ammonia

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Physics
The washing machine works on the principle of

Reverse osmosis
Diffusion
Dialysis
Centrifugation

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Physics
When heated from 0 to 100oC volume of a given mass of water will :

Decrease and then will increase
Increase gradually
Increase and then will decrease
Decrease gradually

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MORE MCQ ON Physics

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