Serving monarch, like any worker initially in current rule? (4,3)
I believe the answer is:
ohms law
'current rule?' is the definition.
(I've seen this before)
'serving monarch like any worker initially' is the wordplay.
'serving monarch' becomes 'ohms' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'initially' indicates taking the first letters.
The first letters of 'like any worker' is 'law'.
'ohms'+'law'='OHMS LAW'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for ohms law that I've seen before include "I = V/R (electrically speaking)" , "Electrical equation" , "V=IR in physics" , "V = I x R" , "principle" .)