This question tests the basic understanding of how to connect cells to form a battery, specifically in a series configuration to increase the total voltage. The correct way to connect cells in series is to ensure that the positive terminal of one cell is connected to the negative terminal of the next cell.
A) (i) only. Statement (i) correctly describes the series connection of cells (or batteries) to form a larger battery with increased voltage. This is the standard and correct method for such a configuration.
The question asks for the term used to describe a combination of two or more cells in electricity. We need to identify the correct electrical component that fits this description.
B) Battery — A battery is defined as a device consisting of one or more electrochemical cells with external connections for powering electrical devices. Therefore, a combination of two or more cells is called a battery.
The question asks to identify the incorrect statement regarding an electric fuse. We need to evaluate each statement based on the principles and function of an electric fuse in household electrical circuits.
Correct Option: C) (iii) only is the incorrect statement.
The question asks for the SI unit of current. This requires knowledge of the International System of Units (SI) and the fundamental physical quantities.
A) ampere is the correct answer. The ampere (symbol: A) is the SI base unit of electric current. It is defined by taking the fixed numerical value of the elementary charge \(e\) to be \(1.602\,176\,634 \times 10^{-19}\) when expressed in the unit coulomb, which is equal to ampere-second, where the second is defined in terms of \(\Delta\nu_{Cs}\).
The question asks for the term that defines the rate of flow of electric charge. This is a fundamental definition in physics, specifically in the study of electricity.
where \(I\) is the electric current, \(Q\) is the electric charge, and \(t\) is the time.
A) electric current is the correct answer because it is defined as the rate of flow of electric charge through a conductor.
This question tests the fundamental understanding of Ohm's Law, which describes the relationship between voltage, current, and resistance in an electrical circuit. We need to identify the correct mathematical expression for Ohm's Law from the given options.
Correct Option: A) (i) only