Calculate the equivalent resistance in the circuit
shown.
0.55
1.82
2.02

Answerigneous bedrock of the oceanic crust;

Answer(a)   the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other