Resistance is represented by _____.

Correct option is A

The formula for resistance is given by:

​$$R = \frac{W }{ (Q × I)}$$​​
where R is resistance, W is the work done, Q is the charge, and I is the current. This formula suggests that resistance is the ratio of work done to the product of charge and current. Therefore, option A is correct.

Information Booster

• Resistance (R) is a measure of how much a material opposes the flow of electric current.
• It is measured in ohms (Ω).
• Resistance depends on the material, length, and cross-sectional area of the conductor.
• The formula $$R =\frac{ V} { I}$$​ (Ohm's Law) is commonly used to find resistance when voltage (V) and current (I) are known.
• Work (W) in this case refers to the energy required to move the charge through the conductor.