answersLogoWhite

0


Best Answer

Questions seem to be two! First is the direct current in a circuit with 12 V battery and 3 ohm resistor in it. The answer is 4 ampere if there is negligible internal resistance in the battery.

By ohm's law V = R I So, I = V/R

Second one is the alternating current with 120V given to 60 W bulb. The answer is 0.5 ampere. This 0.5 is the rms value of alternating current.

Power P = V I So, I = P/V

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

12y ago

If the resistor is the only component across the battery terminals, then 4 amperes

of current will flow through the resistor, and the resistor will dissipate 48 watts,

until the battery runs out or the resistor explodes, whichever comes first.

This answer is:
User Avatar

User Avatar

Wiki User

10y ago

The equation that you should use is I = W/E, Amps = Watts/Volts.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What you the current in an ac circuit with 120 volts and a 60 watt light bulb?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

A circuit has 25 ohm light bulb and t 120 volts what is the current?

I = E/R = 120/25 = 4.8 amperes


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

Current or amperage, is wattage divided by voltage. 60 / 120 = .5 amp.


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

Current or amperage, is wattage divided by voltage. 60 / 120 = .5 amp.


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

Current or amperage, is wattage divided by voltage. 60 / 120 = .5 amp.


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

Power = (voltage) x (current) 60 = 120 x I I = 60/120 = 1/2 Amp.


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.


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

Incomplete circuit


How do you know when electric current is flowing in a light bulb circuit?

You know if current is flowing in a bulb circuit because, if there is enough power (voltage times current), the bulb will illuminate. If there is current, but not enough power to illuminate the bulb, you will need to measure the current with an ammeter to see if there is any current.


How is the rating of a light bulb determined for instance 100W 60W is that how many watts an hour to run it?

No, the wattage is determined by the resistance of the filament in the light bulb. The formula to determine the wattage is Watts = Voltage (squared)/Resistance in Ohms. To find the resistance of a 120 volt light bulb use the formula, Resistance in Ohms = Voltage (squared)/Watts. So for a 100 watt bulb at 120 volts the resistance is 120 volts x 120 volts = 14400/100 = 144 ohms. For a 60 watt bulb at 120 volts the resistance is 120 volts x 120 volts = 14400/60 = 240 ohms. As you can see this holds true to Ohm's law, current is inversely proportional to the resistance of the circuit. The higher the resistance of a load, the harder it is for the current to flow. In this case less current results in less light being emitted from the filament in the light bulb.


What is the current in anACcircuirt with 12-v0lt And a 60 watt light bulb?

A 60 watt bulb at 12 volts will pull 5 amps of current.


What voltage is required to sustain a current of 0.50 through a light bulb resistance of 190?

The voltage of a circuit with a resistance of 250 ohms and a current of 0.95 amps is 237.5 volts. Ohms's law: Voltage = Current times Resistance


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.