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Displacement current is always :

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(a) equal to conduction current (b) less than conduction current (c) greater than conduction current (d) the sum of current due to flow of positive and negative ions

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Class 12 Physics 3 years 1 Answer 5 views Enlightened 0

Electromagnetic waves have a speed of

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(a) 3 × 105 kms-1(b)3 × 106 kms-1(c) 3 × 107 kms-1(d) 3 × 108 kms-1

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3 years 1 Answer 7 views Tech Professional 0

Which of the following laws was modified by Maxwell by introducing the displacement current?

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(a) Gauss’s law(b) Ampere’s law(c) Biot-Savart’s law(d).None of these

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3 years 1 Answer 52 views Tech Professional 0

Give reasons for the following observation: The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close.

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Class 9 Science 3 years 1 Answer 34 views Tech Professional 0

Which of the following are matter? Chair, air, love, smell, hate, almonds, thought, cold, cold drink, smell of perfume.

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3 years 1 Answer 9 views Tech Professional 0

Why is the amount of gas collected in one of the test tubes in Activity 1.7 double of the amount collected in the other? Name this gas.

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Class 10 science 3 years 1 Answer 96 views Tech Professional 1

A solution of a substance ‘X’ is used for white washing.

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(i) Name the substance ‘X’ and write its formula.(ii) Write the reaction of the substance ‘X’ named in (i) above with water.

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Class 10 science 3 years 1 Answer 46 views Tech Professional 0

Write a balanced chemical equation with state symbols for the following reactions.

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(ii) Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium chloride solution and water.

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Class 10 science 3 years 1 Answer 19 views Tech Professional 0

Write a balanced chemical equation with state symbols for the following reactions.

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(i) Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride.

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Class 10 science 3 years 1 Answer 11 views Tech Professional 0

Write the balanced equation for the following chemical reactions.

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(i) Hydrogen + Chlorine → Hydrogen chloride(ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride(iii) Sodium + Water → Sodium hydroxide + Hydrogen

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Class 10 science 3 years 1 Answer 9 views Tech Professional 0

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