Match List I with List II
| List I | List II | ||
|---|---|---|---|
| Physical Quantity | Units | ||
| A. | Electric charge | I. | Newton |
| B. | Force | II. | Coulomb |
| C. | Power | III. | Joule |
| D. | Energy | IV. | Watt |
Choose the most appropriate answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → A-II, B-I, C-IV, D-III
Each of these SI units is named after a scientist who worked on that quantity.
(A) Electric charge — this matches (II) Coulomb. One coulomb is the charge carried by a current of one ampere in one second.
(B) Force — this matches (I) Newton. One newton is the force that gives a mass of 1 kg an acceleration of 1 m/s2.
(C) Power — this matches (IV) Watt. Power is the rate of doing work, and one watt is one joule per second.
(D) Energy — this matches (III) Joule. One joule is the work done when a force of one newton moves a body through one metre.