Back to Directory
NEET PHYSICSEasy

Which of the following represents a volt?

A

Joule/second

B

Watt/Ampere

C

Watt/Coulomb

D

Coulomb/Joule

Step-by-Step Solution

  1. Identify the Physical Quantity: The 'volt' (VV) is the SI unit of electric potential and potential difference.
  2. Analyze Relationships:
  • Power Relationship: Electrical power (PP) is the product of voltage (VV) and current (II), given by P=VIP = VI. Rearranging this for voltage gives V=PIV = \frac{P}{I}.
  • Unit Substitution: Substituting the SI units for power (Watt, WW) and current (Ampere, AA), we get 1 Volt=1 Watt1 Ampere1 \text{ Volt} = \frac{1 \text{ Watt}}{1 \text{ Ampere}}. Thus, a volt can be represented as Watt/Ampere.
  • Work Relationship: Potential is also defined as work done per unit charge, V=WQV = \frac{W}{Q}, which corresponds to the unit Joule/Coulomb (J/CJ/C).
  1. Evaluate Other Options:
  • Joule/second represents the Watt (unit of Power).
  • Watt/Coulomb does not correspond to a standard simple unit in this context.
  • Coulomb/Joule represents the inverse of potential (1/V1/V).
  1. Conclusion: The correct representation among the choices is Watt/Ampere.
Practice Mode Available

Master this Topic on Sushrut

Join thousands of students and practice with AI-generated mock tests.

Get Started