Short test: Resistors in Series and parallel

Three resistors, R1, R2 and R3, of equal resistance R are connected in a circuit. How will the readings on ammeters A1 and A2 be affected when switch S is closed? Reading on A1: [blank_start]increases[blank_end]

Three resistors, R1, R2 and R3, of equal resistance R are connected in a circuit. How will the readings on ammeters A1 and A2 be affected when switch S is closed? Reading on A2: [blank_start]increases[blank_end]

Which of the following combinations of resistors has the lowest resistance?

When resistors are connected in series in a circuit, the current (I) is divided among the resistors.

In a series circuit, the potential difference (V) across the whole circuit is equal to the sum of the potential difference across each circuit component.

The current from the electrical source of a parallel circuit is equal to the current in each parallel branch.

In a parallel circuit, the potential difference (V) across the whole circuit is equal to the sum of the potential difference across each circuit component.