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Depends on the voltage. R equals V2/P . Or the current: R equals P/I2 .

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What is the current in a circuit that has a resistance of 30 ohms and a power of 2 watts?

To find the current in the circuit, you can use the formula: Power = Current^2 * Resistance. Given the values, you can rearrange the formula to solve for current: Current = sqrt(Power / Resistance). Plugging in the values, you get Current = sqrt(2 / 30) which simplifies to approximately 0.27 amperes.


What is the formula for calculating current in a circuit when given the values of power and resistance, where i p/a?

The formula for calculating current in a circuit when given the values of power and resistance is i p/a.


Is power directly proportional to resistance?

No, power is not directly proportional to resistance. The power dissipated in a circuit is given by P = I^2 * R, where I is the current flowing through the circuit and R is the resistance. This means that power is proportional to the square of the current but linearly proportional to resistance.


The power in an electrical circuit is given by the equation P I2R where I is the current flowing through the circuit and R is the resistance of the circuit. What is the power in a circuit that has a c?

The power in a circuit is determined by multiplying the square of the current flowing through the circuit by the resistance of the circuit. Without specific values for current and resistance provided, the precise power cannot be calculated.


What is the formula for calculating the power dissipated in a resistor, given the current flowing through it and the resistance value, known as the i2r power?

The formula for calculating the power dissipated in a resistor, known as the i2r power, is P I2 R, where P is the power in watts, I is the current in amperes, and R is the resistance in ohms.

Related Questions

What is the current in a circuit that has a resistance of 30 ohms and a power of 2 watts?

To find the current in the circuit, you can use the formula: Power = Current^2 * Resistance. Given the values, you can rearrange the formula to solve for current: Current = sqrt(Power / Resistance). Plugging in the values, you get Current = sqrt(2 / 30) which simplifies to approximately 0.27 amperes.


What is the formula for calculating current in a circuit when given the values of power and resistance, where i p/a?

The formula for calculating current in a circuit when given the values of power and resistance is i p/a.


Is power directly proportional to resistance?

No, power is not directly proportional to resistance. The power dissipated in a circuit is given by P = I^2 * R, where I is the current flowing through the circuit and R is the resistance. This means that power is proportional to the square of the current but linearly proportional to resistance.


How do you solve for power if mass distance and time is given?

power=work done/time interval


What is resistance power?

All resistances will emit heat energy when a current flows. The heat production rate (or power) can be found by any of these formulas: Power = Current * Voltage Power = Current2 * Resistance Power = Voltage2 / Resistance. Power is given in Watts when Current is in Amps, Voltage in Volts, and Resistance in Ohms.


How do you compute the watt of heater with volt and resistance are the given?

You must first solve for current or amperage, if you know only voltage and resistance. The symbol for current is normally "I" or "A". The formula is A=V / R . So divide the voltage by the resistance to obtain the current. Then the formula for wattage or power (P) is P= V x A . So then you would multiply the voltage by the current to obtain the power in watts.


Why powerful lamps have lower resistance than less powerful lamps?

Power is voltage squared, divided by resistance (P = V2/R) so, for a given voltage, the lower the resistance, the greater the power!


Prove Hall's theorem from Tutte' theorem graph theory?

in this theorem we will neglect the given resistance and in next step mean as second step we will solve


What is the relationship between Power Ampere and resistance?

power=i square*resistance or power=v suare/resistance


The power in an electrical circuit is given by the equation P I2R where I is the current flowing through the circuit and R is the resistance of the circuit. What is the power in a circuit that has a c?

The power in a circuit is determined by multiplying the square of the current flowing through the circuit by the resistance of the circuit. Without specific values for current and resistance provided, the precise power cannot be calculated.


What is the formula for calculating the power dissipated in a resistor, given the current flowing through it and the resistance value, known as the i2r power?

The formula for calculating the power dissipated in a resistor, known as the i2r power, is P I2 R, where P is the power in watts, I is the current in amperes, and R is the resistance in ohms.


How do you show resistance is proportional to L squared?

Okay. Resistance by ohms law is given by R = V/I But Power P = V * I Dividing R/P = 1/ I 2 Or R = P / I squared For a constant power, resistance is inversely proportional to I squared and not simply proportional to.