Electric Current in Series and Parallel Circuits

Question 1

In a series circuit, the current through each component is:

Accepted Answer

The same everywhere — A series circuit has one path, so the same current flows through every component.

Question 2

In a parallel circuit, the voltage across each branch is:

Accepted Answer

The same across each branch — Each branch of a parallel circuit receives the full source voltage.

Question 3

If one bulb blows in a series circuit, what happens to the others?

Accepted Answer

They go out too — A break anywhere in a series circuit stops the whole current.

Question 4

Why is household wiring connected in parallel?

Accepted Answer

So each appliance gets full voltage and can be switched separately — Parallel wiring gives every appliance the full voltage and independent switching.

Question 5

In a series circuit the source voltage is:

Accepted Answer

Divided among the components — In series the source voltage is shared (divided) between the components.

Question 6

In a parallel circuit, the total current from the source is:

Accepted Answer

The sum of the branch currents — The branch currents add up to give the total current in a parallel circuit.

Question 7

Two identical bulbs on a 6 V battery in series each receive about:

Accepted Answer

3 V — The 6 V is divided equally, so each bulb gets 3 V.

Question 8

Which arrangement makes identical bulbs shine brighter on the same battery?

Accepted Answer

Parallel — In parallel each bulb gets the full voltage, so they are brighter.

Question 9

A series circuit provides the current with:

Accepted Answer

Only one path — Series components form a single loop with one path for current.

Question 10

In a parallel circuit, if one branch is switched off, the other branches:

Accepted Answer

Keep working normally — Other branches still have complete paths, so they keep working.

Two ways to connect components

Series circuit

Parallel circuit