Electricity: Circuits and Components

Farah connects a battery and bulb with a short wire; the bulb lights up. She then connects the same battery and bulb with a very long wire, expecting the bulb to glow brighter, since more wire should mean more current. Is Farah's expectation right?

Vishal builds a circuit where a battery, bulb, and switch are all connected in one loop by wire. He says the switch will only work if placed right next to the bulb. His sister says the switch works the same wherever it sits in the loop. Who is right?

Household electric wires are covered in a plastic coating. Sameer says this means current flows through that plastic coating, which is why you get a shock if you touch it. Reena says plastic blocks current, it does not let it flow. Who is right?

A battery and one bulb in a loop light the bulb. Now a second identical bulb is added into the same loop. Deepak says both bulbs will now shine as brightly as the single bulb did before. His sister says both will be dimmer. Who is right?

Two torches run on identical batteries. In one week, one torch's battery died, the other is still going strong. Ankit says the second battery must simply be better quality. Could that be the only reason?

Isha says a cell (battery) has electricity stored inside it, like water in a bottle — and the moment you connect a wire, that electricity pours out. Her brother says a cell does not hold electricity, it holds something else. Who is right?