10 Questions
Calculate the number of electrons constituting one coulomb of charge.
The number of electrons constituting one coulomb of charge is $6.25 \times 10^{18}$ electrons.
What is the unit of current and how is it defined?
The unit of current is ampere. Ampere is defined by the flow of one coulomb of charge per second.
Name a device that helps to maintain a potential difference across a conductor.
A battery and cell help to maintain a potential difference across a conductor.
What is meant by saying that the potential difference between two points is 1 V?
When 1 J of work is done to move a charge of 1 C from one point to another, it is said that the potential difference between the two points is 1 V.
What does an electric circuit mean?
A continuous closed path made of electric components through which an electric current flows is known as an electric circuit.
Explain the reactivity order of metals A, B, C, and D as mentioned in the text.
The reactivity order of metals A, B, C, and D is B > A > C > D.
What gas is produced when dilute hydrochloric acid is added to a reactive metal?
Hydrogen gas is produced when dilute hydrochloric acid is added to a reactive metal.
What happens when zinc is added to a solution of iron (II) sulphate?
Zinc displaces iron from its salt solution, resulting in the color of ferrous sulphate changing from light green to colorless.
Write the electron-dot structures for sodium, oxygen, and magnesium.
The electron-dot structures for sodium, oxygen, and magnesium are not provided in the text.
Show the formation of Na2O and MgO by the transfer of electrons.
The formation of Na2O and MgO by the transfer of electrons is not provided in the text.
Test your knowledge of electricity and circuits with this quiz. From understanding the concept of an electric circuit to defining the unit of current, this quiz covers essential concepts in electrical engineering. Are you ready to amp up your knowledge of electrons and coulombs?
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