Resistances of 2.0 $\Omega$, 4.0$\Omega$, and 6.0 $\Omega$and a 24-V emf device are all in series.The circuit is initially ungrounded.After grounding, the current in the circuit:
A)increases
B)decreases
C)does not change
D)depends on where in the circuit the ground wire is attached
E)depends on what the circuit is grounded to

Question

Quizplus · Accepted Answer

Grounding a point in a series circuit does not change the total resistance or the voltage across the circuit, so the current remains the same.

Resistances of 2 Ω\OmegaΩ , 40 Ω\OmegaΩ , and 60 Ω\OmegaΩ And a 24-V Emf Device Are All in Series

Resistances of 2 $\Omega$ , 40 $\Omega$ , and 60 $\Omega$ And a 24-V Emf Device Are All in Series