If one doubles the emfs in a circuit and doubles the resistances in the circuit at the same time, what happens to the currents through the resistors? assume there are only emfs and resistors in the circuit.

Same

Explanation:

Let R be the resistance of the cell and E be the emf.

Let i be the current in the circuit.

i = E / R       (1)

Now emf and resistance be doubled.

so, i' = 2E/2R = E/R

So, i' = i    (From equation (1)

Current remains same.

the cellphone, they would then know if the killer would have contacted them or always hated them. or if it was a breakup. but if that is not the case, then it would be the clothing. to put in a bullet, it would have to be put in by hands. hands have finger prints which, would have giving you the answer of who done it.

explanation:

compass can be used day and night, cloudy or sunny