if the horn is already there and is bad, just disconnect the two wires on it, unscrew horn, remove it and reinstall the new one and reconnect the wires. If you don't have a horn, then find a suitable place under the hood and drill X number of holes. The switch is wired in series with the battery and horn. The button is placed at a convenient place you can get to it when you want to blow the horn.
The positive terminal of the battery would be connected to the positive terminal of the ammeter. The load would then be connected between the two negative terminals, positive side of the load being connected to the negative side of the ammeter.
a battery and a resistor connected together.
You would short out the battery. If it was a car battery capable of 300 amps and the wire was big enough, the battery could explode.
A battery stores chemical energy and converts it into electrical energy when connected to a circuit.
it is possible for the unlock side of the switch to be bad and it has nothing to do with the battery
The voltmeter would read 12 volts. An ammeter connected to to battery would only read 4 amps (12 volts divided by 3 ohms =4)
I am not completely sure on why you battery in your Mustang would be smoking only when connected to the starter. I would take into a shop and have them look at it.
The current depends on what is connected to the battery's terminals. If nothing is connected to it, then there is no current, and the battery lasts quite a while. In general, the current is 1.5/resistance of the external circuit connected to the battery until that number gets too big, and then the voltage of the battery sags, because it can't deliver that much current.
nearly 12v when running means your battery is not getting charged.. it should be just shy of 14v when the alternator is working correctly
That would be a battery.
Overcharging by the alternator or if it is connected in reverse polarity.
A simple series circuit is typically used in a battery-operated torch. This circuit allows for the flow of current from the battery through the light bulb, providing illumination. The components are connected in a loop, where the positive terminal of the battery is connected to the light bulb and then back to the negative terminal of the battery.