Question

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a device that runs on electricity that is supplied by 4 batteries stops working when one of the batteries is removed. what could possibly be the reason for the device no longer working?
the batteries may be connected in series and so removing one forms an open circuit.
the batteries are connected in parallel, which allows more than one path for the current.
one of the other batteries no longer has electrical energy.
removing a battery may no longer supply enough electrical energy to power the device.

Explanation:

1. For series-connected batteries, removing one breaks the single current path, creating an open circuit that stops the device.
2. If the device requires a minimum voltage/energy, removing one battery reduces total energy below the required threshold, stopping the device.
3. Parallel batteries have multiple current paths, so removing one does not stop the circuit. A dead other battery is not implied by the given scenario.

Answer:

• The batteries may be connected in series and so removing one forms an open circuit.
• Removing a battery may no longer supply enough electrical energy to power the device.