Question

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Answer 1

Answer:

15, by adding extra batter or making circuit smaller

16, because each has its own power point

17, because all bulbs are connected to one single source

18, not sure

Explanation:

Answer 2

Answer:

1 . Placing cells in series increases the voltage in the circuit by 1.5 V for each cell. Increasing the voltage increases the brightness of the bulb. When a bulb in a series circuit is unscrewed all bulbs in the circuit go out. Increasing the number of bulbs in a series circuit decreases the brightness of the bulbs.

2 . In a parallel circuit, 100W bulb glows brighter due to high power dissipation instead of an 80W bulb. The bulb which dissipates more power will glow brighter. In series, both bulbs have the same current flowing through them. ... In parallel, both bulbs have the same voltage across them.

3 . The bulbs are dim for two reasons: The current going through them is smaller because two bulbs in series have a higher resistance than a single bulb. Each charge only gives up some of its energy in each bulb, i.e. the p.d. across each bulb is smaller.

4 . The flow of electrons is termed electron current. ... Conventional current or simply current, behaves as if positive charge carriers cause current flow. Conventional current flows from the positive terminal to the negative.

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