Why circuit components behave differently

Question 1

A battery is connected to two identical bulbs. In circuit A the bulbs are connected in series. In circuit B the bulbs are connected in parallel. Which circuit will make each bulb brighter, and why?

Accepted Answer

Circuit B, because each bulb receives the full voltage from the battery.

Answer

Circuit B, because the current is divided between the bulbs, which makes them brighter.

Answer

Circuit A, because the bulbs share the current, making each bulb brighter.

Answer

Circuit A, because the voltage is divided between the bulbs, which makes each bulb brighter.

Question 2

Two circuits each have a battery and two identical light bulbs. In Circuit A the bulbs are connected in series, and in Circuit B the bulbs are connected in parallel. Which statement is true?

Accepted Answer

The bulbs in the series circuit are dimmer than those in the parallel circuit because the battery’s energy is shared between the bulbs.

Answer

The bulbs in both circuits have the same brightness because the bulbs are identical.

Answer

The bulbs in the series circuit are brighter than those in the parallel circuit because the voltage adds across the bulbs.

Answer

The bulbs in the parallel circuit are dimmer than those in the series circuit because each bulb receives only part of the battery’s voltage.

Question 3

A battery is used to light two identical bulbs. In the first circuit the bulbs are connected one after another in series. In the second circuit each bulb is connected directly to the battery, forming a parallel circuit. Which statement is true?

Accepted Answer

Each bulb in the parallel circuit will be brighter because each bulb receives the full voltage from the battery.

Answer

Each bulb in the series circuit will be brighter because the same current flows through both bulbs, giving them more energy.

Answer

The bulbs will be equally bright in both circuits since the same battery is used.

Answer

Each bulb in the parallel circuit will be dimmer because the battery’s current is split between the two paths.

Try three questions

A battery is connected to two identical bulbs. In circuit A the bulbs are connected in series. In circuit B the bulbs are connected in parallel. Which circuit will make each bulb brighter, and why?

Two circuits each have a battery and two identical light bulbs. In Circuit A the bulbs are connected in series, and in Circuit B the bulbs are connected in parallel. Which statement is true?

A battery is used to light two identical bulbs. In the first circuit the bulbs are connected one after another in series. In the second circuit each bulb is connected directly to the battery, forming a parallel circuit. Which statement is true?

Keep going on this shelf