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Use the formula P= VI (power = potential x current) where (watts = volts x amps).

The current I in amperes is equal to the watts divided by the volts, 40/120.

The bulb is using 1/3 amp of current.

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What is the current in an AC circuit with a 120-volts and a 60 watt light bulb?

To calculate the current in the AC circuit, we can use the formula P = V * I, where P is power (60 watts), V is voltage (120 volts), and I is current. Rearranging the formula to solve for current I, we get I = P / V. Plugging in the values, I = 60 watts / 120 volts = 0.5 amps. Therefore, the current flowing through the circuit is 0.5 amps.


Is electrical current greater before or after light bulb?

Electrical current is equal throughout a series circuit.


The part of a circuit that closes or opens a circuit?

Generally a circuit breaker (like a light switch) But I guess you could use a resistor of the right resistance If you are talking about the circuit breaker there is an electromagnetic coil in it which get magnetized on a specific amount of current and breaks the circuit


What is the continuous loop that an electric current flows through?

The continuous loop that an electric current flows through is called a circuit. It typically consists of a power source (such as a battery), conductive wires, and components like resistors, switches, and light bulbs. When the circuit is complete, electrons can flow continuously through the loop, allowing electrical energy to be transferred and used.


What happens when the switch is open in a circuit containing wires a light bulb a switch and a battery?

When you open a switch to a light for example, you cause a break in the flow of current to the light. Opening a light switch means you are turning the light off by stopping the flow of current to it. Closing a switch means you have completed a circuit (basically a loop) and current now flows causing the light to go on. Think of electricity like water. To cause your bath tub to fill up (light on) you have to also complete the circuit by turning the tap. Now we have water flow. (current) To stop the flow of water, we want to open the circuit by turning the tap in the opposite direction causing a break in the flow of water.

Related Questions

What is the current in an ac circuit with 120volts and a 60watt light bulb?

Power = Current * Voltage Current = Power / Voltage Current = 60 W / 120 V Curretn = 0.5 A


If two light-bulbs are connected in a series circuit and one of the light-bulb's current flowing is 0.5 A what is the current flowing in the other light-bulb?

Current in a series circuit is the same throughout the circuit. Voltages are additive. Voltage in a parallel circuit is the same throughout the circuit. Currents are additive.


What is the current in an AC circuit with a 120-volts and a 60 watt light bulb?

To calculate the current in the AC circuit, we can use the formula P = V * I, where P is power (60 watts), V is voltage (120 volts), and I is current. Rearranging the formula to solve for current I, we get I = P / V. Plugging in the values, I = 60 watts / 120 volts = 0.5 amps. Therefore, the current flowing through the circuit is 0.5 amps.


Is the amount of current that flows in the wire of electric circuit the same as the current that flows in the filament of the light connected in that circuit?

yes


What happens in a series circuit if a light blows?

The circuit current is interrupted and all the lights will go out.


This circuit is a series circuit because?

the same current flows through both light bulbs


Why is there 0 current when a light bulb burns out?

Incomplete circuit


Why will the current flow be different in a heated rear screen circuit than a side light circuit?

the heated rear screen circuit has a higher resistance compared to the side light circuit


A light bulb in a simple circuit blows and goes out Is current now flowing in the circuit?

No. Circuit is open but still HOT.


How does light bulbs in a circuit affect the current size?

They don't unless you speaking about a parallel circuit in which total currect would be the sum of all the currents in each light bulb (The more light bulbs, the more current draw) If you're talking about a series circuit, nothing at all happens to the current, as in a seires circuit current is constant throughout the entire circuit (voltage changes). In a case such as this the more light bulbs in the circuit, the less the voltage becomes across those bulbs (furthest from the source), thus they will become dimmer due to lower power (P=IE).


In an electric current electricity flow how?

Electricity can flow in an electric circuit by a battery. The battery creates electrons, which flow through the wire, and then go into a light bulb. (That is how a light bulb in a circuit lights up.) A series circuit is a circuit with one wire that electrons can flow through. Also, there can be more than one light bulb connecting to the same wire. A parallel circuit is a circuit with light bulbs that have their own wire.ClarificationThe above answer, unfortunately, perpetuates the myth that current leaves a battery, and finds its way around a circuit. This is not the case at all. It is the load that 'draws' the current from the battery and it is the load that determines the size of that current.


What would a light bulb act as in a circuit?

A light bulb would act as a load in a circuit. It transforms electrical energy into light energy and heat when current passes through it. It offers resistance to the flow of current, causing it to light up.