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How do you find current if the resistance is not given?
You can find the current by using Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R). If the resistance is not given, you will need to know the voltage and another parameter such as power (P) or conductance (G) to calculate the current. Alternatively, you can measure the current using an ammeter in a circuit.
What are the methods used to step up the current?
The most common methods to step up current include using a transformer, a boost converter, or a charge pump circuit. These methods can increase the voltage level while maintaining the same current flow in the circuit.
What are the three quantities that may be considered as parameters in order to change the speed of a dc motors?
The three quantities are applied voltage, magnetic field strength, and armature current. By adjusting these parameters, the speed of a DC motor can be controlled.
In order to make an electric current flow it is necessary to have?
In order to make an electric current flow, you need a closed circuit that includes a source of electrical energy, such as a battery or a power outlet, and a complete path for the current to flow, typically made up of conductive materials like copper wires. The flow of electric current occurs when there is a potential difference (voltage) between two points in the circuit, causing electrons to move from one point to another.
Will the order in which you hook up the light bulbs in series affect the intensity of light each emits?
No, the intensity of light emitted by each light bulb in a series circuit is determined by the voltage across each bulb, not the order in which they are connected. The voltage drop across each bulb will be the same regardless of the order in which they are connected in a series circuit.
