Two resistors of resistances R1​ = 100.0 ± 0.01Ω and R2​ = 50 ± 0.03Ω calaculate the uncertaintyand the total resistance in the combined resistance both series and parallel connections

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

What are similarities and differences between refraction, reflection, diffraction and absorption?

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