QuizSagar
4 years ago Like 232906
Questions 823
Contests 7
Which of the following device is used to measure electric current in a circuit?
- Galvanometer
- Voltmeter
- Ammeter
- Voltameter
- option3
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Which of the following statement is true for a fuse wire?
- High resistance and high melting point.
- Low resistance and high melting point.
- High resistance and low melting point.
- Low resistance and low melting point.
- option2
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Which of the following substance is not a magnetic material?
- Iron
- Nickle
- Brass
- Cobalt
- option3
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Brass is not attract by magnetic. So it's not magnetic material
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The value of magnetic field inside a current carrying long straight solenoid.
- is zero
- decreases, while moving towards its ends
- increases, while moving towards its ends.
- is equal at all points.
- option4
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magnetic field in the solenoid is constant because the lines are completely parallel to each other.
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Who discovered the Magnetic effect of electric current?
- Oersted
- Ampere
- Bohr
- Faraday
- option1
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The magnetic effect of electric current was discovered by Hans Christian Oersted in the year 1982.
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Which of the following is not an example of a bios-mass energy source?
- Wood
- Gobar-Gas
- Nuclear energy
- Coal
- option3
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Biomass is renewable organic material that comes from plants and animals. But Nuclear produces energy through harnessing the energy at the core of an atom, through nuclear fission.
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Na2SO4 + BaCl2 → BaSO4 + 2NaCl The above reaction is an example of which of the following type?
- Combination reaction
- Double displacement reaction
- Decomposition reaction
- Displacement reaction
- option2
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A double-replacement reaction is a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds.
AB + CD → AC + BD
Or AB + CD → AC + BD
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What should be the pH value of acid rain water?
- 5.6
- less than 5.6
- more than 5.6
- 7.0
- option2
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Typical acid rain has a pH value of 4.0 which is less than 5.6
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Na2SO4 + BaCl2 → BaSO4 + 2NaCl
The above reaction is an example of which of the following type?
- Combination reaction
- Double displacement reaction
- Decomposition reaction
- Displacement reaction
- option2
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A double-replacement reaction is a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds.
AB + CD → AC + BD
Or AB + CD → AC + BD
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Which of the following is the common name of the compound NaHCO3
- Washing Soda
- Baking Soda
- Bleaching Powder
- Sodium Carbonate
- option2
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