current is the other factor. power (wattage) is the product of current (amps) and voltage
Because the power of a resistive component is directly proportional to the square of the voltage across that component.
transistor
Not necessarily. Amperage (current) is just one component of electrical power. Power is the product of voltage and current. To calculate power, you need both voltage and amperage.
No, voltage is not the same in parallel circuits. Voltage is constant across components in a series circuit, but in a parallel circuit, each component has the same voltage as the power source.
The circuit by itself doesn't determine the voltage of the power supply. If there's some additional requirement that goes along with the circuit, such as "The current through the circuit must be XYZ amperes.", or "The voltage across the third component from the north end of the circuit shall be ABC volts,", then that requirement would dictate the power supply voltage. But in order to calculate it, you'd need the knowledge of every component in the series circuit.
The active power of an inductor is zero. As we know, the active power is the result of product of supply voltage and in-phase component of load current. But the load current in pure inductive load lags supply voltage by 90 degrees. So there is no component of load current that is in-phase with the supply voltage. Therefore, the active power in inductive reactance is zero.
resistors is a most common electronic component and is used to control the voltage and current in a electronic circuit. resistors is inversely proportional to amount of power supplied,given by (power= voltage *current).
Power in a circuit can be calculated by multiplying the voltage (V) across a component by the current (I) flowing through it. The formula for power is: P = V x I. It is measured in watts (W).
Which component is designed to remove high-voltage spikes and surges from a power line so that they do not damage a computer system?
Since voltage is electrical potential difference, to measure the voltage across a component, you place the voltmeter across, or in parallel with, the component.
A dual voltage selector switch is commonly found in power supplies, especially in external power adapters for laptops and other electronic devices. This component allows users to switch between different voltage settings, typically to accommodate varying electrical standards in different regions. By selecting the appropriate voltage, the device can operate safely and efficiently, preventing damage due to incorrect voltage levels.
Power dissipated by the entire series circuit = (voltage between its ends)2 / (sum of resistances of each component in the circuit). Power dissipated by one individual component in the series circuit = (current through the series circuit)2 x (resistance of the individual component).