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Since power is the product of voltage and current, you will need to find out the power rating of the headlamp when on low beam. To find the current, divide the power of the lamp by the voltage (12 V).

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What is the formula for total current in a series circuit?

Current = (Voltage across the circuit) divided by (Total resistance of the circuit). The current is the same at every point in the series circuit.


Using ohm's law what is the formula to find the resistance in a circuit?

Resistance of the circuit = (voltage across the circuit) divided by (current through the circuit)


How do you work out the current in a circuit?

we can calculate the current in a commmon electrical circuit by this formulae i.e,I=V\R where i is the current flowing in the conductor, R is resistance , V is the voltage.. THE FORMULA IS CORRECT but the term conductor does not suffice an explanation since a conductor is low in resistance R= resistance not conduction.


What is the formula to calculate the fuse or circuit breaker to protect motors?

Motors are rated either in Watts or Amps, and by Voltage. If the motor is rated in Amps, that is the fuse or circuit breaker size you will need. If rated in Watts, you will have to use the formula P=IE, where P is power in Watts, I is current in Amps, and E is Electromotive Force in Volts. Since we know the watts and volts, we solve for current, thus: I=P/E, and I will be your current rating. One note: These calculations give the MINIMUM rating needed for the motor to run. Fuses and circuit breakers are usually designed so that they will break if the circuit pulls 250% of the Motor's rating.


What is the dimensional formula for current?

One way to calculate current is using ohms law; current equals voltage divided by resistance or: I=V/R Where I is current, V is voltage and R is resistance.

Related Questions

How to calculate amps in a circuit?

To calculate amps in a circuit, use the formula: Amps Volts / Ohms. This formula helps determine the current flowing through a circuit based on the voltage and resistance present.


How to calculate the current in a circuit?

To calculate the current in a circuit, you can use Ohm's Law, which states that current (I) equals voltage (V) divided by resistance (R). The formula is I V/R. Simply plug in the values for voltage and resistance to find the current flowing through the circuit.


What is the formula to calculate the instantaneous power in an electrical circuit?

The formula to calculate the instantaneous power in an electrical circuit is P V x I, where P represents power, V represents voltage, and I represents current.


What is the current in amps flowing through the circuit?

To determine the current in amps flowing through the circuit, you need to use Ohm's Law, which states that current (I) equals voltage (V) divided by resistance (R). The formula is I V / R. Measure the voltage across the circuit and the total resistance of the circuit, then plug the values into the formula to calculate the current in amps.


How do you calculate amps in an electrical circuit?

To calculate amps in an electrical circuit, you use Ohm's Law, which states that Amps (I) Volts (V) / Resistance (R). This formula helps you determine the current flowing through the circuit based on the voltage and resistance present.


How can you calculate the potential difference between two points in a circuit?

To calculate the potential difference between two points in a circuit, you can use Ohm's Law, which states that voltage (V) equals current (I) multiplied by resistance (R). The formula is V I x R. By knowing the current flowing through the circuit and the resistance between the two points, you can calculate the potential difference.


What is the formula for total current in a series circuit?

Current = (Voltage across the circuit) divided by (Total resistance of the circuit). The current is the same at every point in the series circuit.


How do you calculate current flow?

Current flow can be calculated using Ohm's Law, which states that current (I) is equal to the voltage (V) divided by the resistance (R), represented by the formula I = V/R. By measuring the voltage across a circuit and knowing the resistance, you can calculate the current flowing through it.


What is the formula for instantaneous current?

The formula for instantaneous current (i) in a circuit is given by Ohm's law: i = V / R, where V is the voltage across the circuit and R is the resistance.


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.


What is the maximum voltage formula for a circuit with a given resistance and current?

The maximum voltage formula for a circuit is V I R, where V is the voltage, I is the current, and R is the resistance.


How much watts in 16kv?

To calculate the watts in 16kV, you would need to know the current flowing through the circuit. The formula to calculate watts is Watts = Volts x Amps. Without the value of current (Amps), we cannot determine the watts.