Which physical principle is ensured by the negative sign in the relation ?
PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
Which physical principle is ensured by the negative sign in the relation ε=−NdΦ/dt?
(a) Conservation of charge
(b) Conservation of magnetic flux
(c) Conservation of energy
(d) Newton’s third law (action–reaction principle)