Series & Parallel Circuits

What happens to the brightness of light bulbs in a series circuit when more bulbs are added?

• The brightness of each bulb increases because the total voltage is shared equally.

• The brightness of each bulb remains the same regardless of the number of bulbs added.

• The brightness of each bulb decreases because the total voltage is divided among all the bulbs.

• The brightness of each bulb fluctuates randomly with the addition of more bulbs.

What happens when one light bulb blows out in a series circuit?

• The entire circuit is broken, and all the light bulbs go out.

• Only the blown bulb goes out, and the others remain lit.

• The circuit continues to function normally with reduced brightness.

• The blown bulb can be replaced without affecting the circuit.

What happens to the current in a series circuit when more components are added?

• The total resistance decreases, causing the overall current to increase.

• The total resistance increases, which causes the overall current to decrease.

• The current remains the same regardless of the number of components added.

• The current fluctuates randomly with the addition of components.

What is a parallel circuit?

• A type of circuit where components are connected in a single path.

• A type of circuit where components are connected across common points, allowing multiple pathways for current to flow.

• A circuit that only allows current to flow in one direction.

• A circuit that has no junctions and only one pathway for current.

How does the total resistance in a parallel circuit compare to the individual resistances?

• The total resistance in a parallel circuit is greater than the largest individual resistance.

• The total resistance in a parallel circuit is equal to the sum of the individual resistances.

• The total resistance in a parallel circuit is less than the smallest individual resistance.

• The total resistance in a parallel circuit is the same as the average of the individual resistances.

What is a series circuit?

• A type of circuit where components are connected in parallel.

• A type of electrical circuit where components are connected end-to-end, allowing current to flow through each component in turn.

• A circuit that only allows current to flow in one direction.

• A circuit that has multiple paths for current to flow.

What happens to the other light bulbs in a parallel circuit if one bulb is removed?

• The other light bulbs will stay on.

• The other light bulbs will go out.

• The circuit will break and all bulbs will turn off.

• The remaining bulbs will flicker before going out.

What is the formula for calculating total resistance in a parallel circuit?

• R_total = R1 + R2 + R3 + ...

• 1/R_total = 1/R1 + 1/R2 + 1/R3 + ...

• R_total = R1 * R2 * R3 / (R1 + R2 + R3)

• R_total = 1/(1/R1 + 1/R2 + 1/R3)

What happens when one light bulb blows out in a parallel circuit?

• All bulbs go out.

• Only the blown bulb goes out; the other bulbs remain lit.

• The circuit is completely broken and cannot be used.

• The remaining bulbs flicker before going out.

What is the main characteristic of a series circuit?

• In a series circuit, all components share the same current.

• In a series circuit, the voltage is the same across all components.

• In a series circuit, components are connected in parallel.

• In a series circuit, the total resistance is zero.