alleryStart learning →One volt of potential difference is defined as
A1 coulomb per joule
B1 ampere per ohm
C1 joule per coulomb
D1 joule per second
Answer & Solution
Correct answer: C. 1 joule per coulomb
1. Potential difference = work done per unit charge, V = W/Q.
2. So **1 volt = 1 joule / 1 coulomb** (energy given to each coulomb).
3. 1 J/s is the watt (power), not the volt.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch12 'Electricity', §12.2_
Keep practising Electricity
Browse all Electricity questions for Karnataka SSLC (Class 10), or explore more Science topics.
Related questions
If the resistance of a component is kept constant and the voltage across it is doubled, thThe commercial unit of electrical energy, '1 unit', isA potential difference of 12 V is applied across a $4\ \Omega$ resistor. The current throuJoule's law of heating states that the heat produced in a resistor isThe electric power dissipated in a resistor can be written asTwo resistors, each of resistance $R$, are connected in parallel. Their equivalent resistaFor resistors in parallel, the reciprocal of the equivalent resistance equalsWhen three resistors are connected in series, the equivalent resistance is