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No, you can not charge a 3V battery with 12V charger.

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15y ago

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If you have two 1.5-V batteries and they have the positive terminal of one batery connected with the negative terminal of another how does that voltage compare with the voltage of a single battery?

When you connect the positive terminal of one 1.5V battery to the negative terminal of another, you create a series circuit. In this case, the voltage is additive, so the total voltage across the two batteries is 3V (1.5V + 1.5V = 3V), which is double the voltage of a single battery.


The tip of a flashlight bulb is touching the top of a 3V battery. Does the bulb light?

No, the bulb will not light up because there needs to be a complete circuit for the electricity to flow through. When you press the switch of the flashlight, it completes the circuit, allowing the bulb to light up.


How you get 3VDC To 12VDc?

To convert 3V DC to 12V DC, you can use a DC-DC boost converter, which steps up the voltage. This device utilizes inductors, capacitors, and switches to efficiently increase the voltage while maintaining the power balance. Alternatively, you could use a combination of a step-up transformer and a rectifier, but this is more common for AC applications. Ensure that the boost converter can handle the required current for your application.


If three lamps are connected in series to a 6 volt battery how many volts are impressed across each lamp?

In a parallel circuit, Voltage is constant through out the circuit. Thus, the voltage across each lamp is 6-volts.


How do you wire 6 batteries together to make 9 volts?

It depends on what you want to do with the batteries. They can be connected in series to give you a total of 12 VDC. In a series connection a jumper is required between battery one's negative post to battery number two's positive post. If you want to increase the amp hours delivered at 6VDC they can be connected in parallel. In a parallel connection two jumpers are required. Battery one's negative post to battery two's negative post. Likewise the same procedure with the positive posts.