Electricity - So what do you know?

Two lamps, A and B, are connected in series with a battery. Lamp A is unscrewed from its holder. What will happen to lamp B?

• 1) Nothing. Lamp B remains the same

• 2) B becomes brighter

• 3) Lamp B stops working

• 4) Lamp B becomes dimmer

Two lamps, A and B, are connected in parallel with a battery. Lamp A is unscrewed from its holder. What will happen to lamp B?

• 1) Nothing. Lamp B remains lit

• 2) Lamp B becomes brighter

• 3) Lamp B stops working

• 4) Lamp B becomes dimmer

What happens to electric current as it goes round a circuit?

• 1) It gets large as it moves around the circuit.

• 2) It slows down as it moves around the circuit.

• 3) it gets smaller as it move around the circuit.

• 4) It always remains the same as it moves around the circuit.

A series circuit consists of two ammeters, A1 and A2, and two bulbs connected to a battery. Which ammeter will have the biggest reading?

• 1) Ammeter A1 and A2 will have the same reading regardless of what is in the circuit

• 2) Ammeter A2 will be bigger because the current gets larger as it moves around the circuit.

• 3) Ammeter A1 will be bigger than A2 because it reads the current first.

• 4) Ammeter A1 and A2 will have different readings because the bulbs will have a different brightness.

Lamp A is connect to a battery. A second lamp is added in series. What happens to Lamp A

• 1) Nothing. The current through Lamp A remains the same.

• 2) Lamp A gets dimmer as the current through the bulb decreases.

• 3) Lamp A gets brighter as the current through the bulb increases

• 4) Lamp A stops working as no current now flows through it

Lamp A is connect to a battery. A second lamp is added in parallel. What happens to Lamp A

• 1) Nothing. The current through Lamp A remains the same.

• 2) Lamp A gets dimmer as the current through the bulb decreases.

• 3) Lamp A gets brighter as the current through the bulb increases

• 4) Lamp A stops working as no current now flows through it