1 Volt / 1 Ampere = _______.

Correct option is A

The correct answer is: (a) 1 Ohm

• Ohm's Law states that V = IR, where V is the voltage (in volts), I is the current (in amperes), and R is the resistance (in ohms).

• Therefore, Resistance (R) is equal to Voltage (V) divided by Current (I): $$R = \frac{V}{I}$$

• Hence, 1 Volt / 1 Ampere equals 1 Ohm, which is the unit of resistance in the International System of Units (SI).

Why other options are incorrect:

• (b) 1 Ohm-m: Ohm-m is not a standard unit of resistance and is not derived from the formula.

• (c) 1 Joule: Joule is the unit of energy, not resistance.

• (d) 1 Coulomb: Coulomb is the unit of electric charge, not resistance.

Information Booster:

• Ohm (Ω) is the unit of resistance in the SI system.

• Ohm's Law describes the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit.

• 1 Ohm is defined as the resistance that allows 1 Ampere of current to flow when 1 Volt is applied.

Additional Information:

• The SI unit of voltage is the Volt (V), which is equivalent to 1 Joule per Coulomb.

• The SI unit of current is the Ampere (A), representing the flow of 1 Coulomb of charge per second.