FADFAD1 said:I used a negative voltage for when it passes through the first resistor then added 20V through the battery but it doesn't seem right
It sounds like B is the negative terminal of the 6 volt battery.Asymptotic said:What is point B?
Current flows from point A to point B in a circuit due to the presence of a potential difference or voltage between the two points. This voltage creates an electric field, which causes the flow of charged particles, known as electrons, through the circuit.
Current flow in a circuit is always in the direction of the electric field, which is from the positive terminal to the negative terminal of a battery or power source. This means that the flow of electrons is from point A to point B in the circuit.
The amount of current flowing from point A to point B is determined by the voltage or potential difference between the two points and the resistance of the circuit. This relationship is described by Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R).
The flow of current in a circuit can be affected by several factors, including the voltage, resistance, and the type of material the circuit is made of. Changes in these factors can alter the amount of current flowing from point A to point B.
No, current cannot flow in a circuit without a power source, such as a battery or a generator. This is because a power source provides the necessary voltage or potential difference to create the electric field that drives the flow of current in the circuit.