Question

Choose the correct relationship :-
(a) J=CV
(b) J=VA
(c) J=C/V
(f) V=JC​

Answer 1

Answer:

(b) J=VA is a correct relationship. I think.

Answer 2

Answer:

The correct relationships will be: (a) J=CV

                                              and (b) J=VA

Explanation:

Step-1

• In mechanics the unit of work done is joule (J).
• In electricity the work done is expressed as, W = IV ............(1)

       Here I = current and its unit is ampere (A)

         and V is the voltage and its unit is volts (V).

• So, putting all the units in relation (1) we get, J = AV

  Option (a) is correct i.e J = VA

Step-2

• 1 A current means 6.24 × $10^18$ electrons flowing in 1 second.

        Charge of 1 electron = 1.6 × $10^-19$ Coulomb

         1 A = 6.24 × $10^18$  × 1.6 × $10^-19$ C = 0.9984 C ≅ 1 C

• From relation (1) we can write, J = CV

       Option (a) J =CV is also correct.