In a series circuit there is a single path, so the current is the same at every point. The supply voltage is shared between the components, and the resistances add up. Set the two resistors, predict the current, then close the switch: both ammeters read the same value, and the two voltmeter readings always add up to the supply.
MissionSet the resistors to give a current of 2.0 A (within 0.15 A).Round 1Streak 0Best 0
The current will be:
Supply e.m.f. is fixed at 12 V. More resistance means less current.
total resistance R₁ + R₂6 Ω
current (same everywhere)0.0 A
p.d. across R₁0.0 V
p.d. across R₂0.0 V
I = e.m.f. ÷ (R₁ + R₂) = 12 ÷ 6 = 2.0 A. V₁ + V₂ = 12 V.