What is the formula for calculating EMF according to Ohm's Law?

What is the formula for calculating EMF according to Ohm's Law?

• A. EMF = Power + Current
• B. EMF = Current divided by Resistance
• C. EMF = Current X Resistance
• D. EMF = Voltage + Resistance

Answer: (C)

The formula for calculating EMF (Electromotive Force) according to Ohm's Law is given by the relationship between current, resistance, and voltage. Specifically, EMF is defined as the product of current and resistance in a circuit. This relationship illustrates that the voltage (or EMF) supplied in the circuit is a result of the amount of electric current flowing through a conductor multiplied by the resistance that the conductor offers to the flow of that current. In mathematical terms, it’s expressed as: EMF = Current × Resistance This formula is foundational in understanding how electrical circuits function, where the role of resistance in controlling the flow of current is key to managing voltage levels in various applications.

The formula for calculating EMF (Electromotive Force) according to Ohm's Law is given by the relationship between current, resistance, and voltage. Specifically, EMF is defined as the product of current and resistance in a circuit. This relationship illustrates that the voltage (or EMF) supplied in the circuit is a result of the amount of electric current flowing through a conductor multiplied by the resistance that the conductor offers to the flow of that current.

In mathematical terms, it’s expressed as:

EMF = Current × Resistance

This formula is foundational in understanding how electrical circuits function, where the role of resistance in controlling the flow of current is key to managing voltage levels in various applications.