In a normal dry cell, the electrolyte is a paste-like mixture typically composed of ammonium chloride (NH4Cl) and zinc chloride (ZnCl2). This electrolyte serves to facilitate the chemical reactions that generate electric current within the cell.

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When the length of a wire is doubled from L to 2L, the resistance of the wire will change due to the relationship between resistance and length in electrical conductors.

The SI unit of specific resistance, also known as resistivity, is the ohm-meter (symbol: Ω·m). Resistivity quantifies the intrinsic resistance of a material to the flow of electric current. It is a characteristic property that depends on the material’s composition ...

Ohm’s law defines the relationship between voltage (potential difference) and current in an electrical circuit, stating that the current flowing through a conductor is directly proportional to the voltage applied across it, provided the temperature remains constant.

If the radius of a wire is halved, its resistance will increase. The resistance of a wire is inversely proportional to the cross-sectional area, which is proportional to the square of the radius. Therefore, halving the radius increases the resistance ...

The potential difference between the ends of a conductor is proportional to the current flowing through it. This relationship is defined by Ohm’s law, which states that the voltage across a conductor (potential difference) is directly proportional to the current ...

Fans, bulbs, and other electrical appliances installed in houses are typically installed in parallel. In a parallel circuit configuration, each appliance is connected individually to the power supply, allowing them to operate independently. This setup ensures that if one appliance ...

The unit of resistance is the ohm (symbol: Ω). Resistance is a measure of how much a material or device opposes the flow of electric current. It quantifies the degree to which a conductor resists the passage of electrons. The ...

The current flowing through a conductor connected to a 110-volt source can be calculated using Ohm’s law. Ohm’s law states that current (I) equals voltage (V) divided by resistance (R). Here, with a resistance of 440 ohms and a voltage ...

The algebraic sum of the currents meeting at a point in a circuit is zero. According to Kirchhoff’s current law (KCL), which states that the total current entering a junction (or node) in a circuit is equal to the total ...