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## How much current flows through a 60 W bulb at 120V?

The 120-Watt bulb has the lower resistance; and using Ohm’s law, one would expect it also has the higher current. In fact, the 120-Watt bulb would have a current of 1 Amp and a resistance of 120 Ω; the 60-Watt bulb would have a current of **0.5 Amp** and a resistance of 240 Ω.

## How many amperes flow in a 60 watt bulb that is rated for 120 volts when it is connected to a 120 volt circuit?

Physics 4-26

Question | Answer |
---|---|

A battery does 18J of work on 10 coulombs of charge. What voltage does the battery supply? | 1.8 V |

What is the current in a 60W bulb connected to a 120V source? | 0.5 Amps |

What is the power dissipated by a toaster that has a resistance of 40 ohms and is plugged into a 120 V outlet? | 360 Watts |

## How many amps does 60 watts draw?

The Wattage is divided by-110. A 40 Watts bulb is capable of drawing 0.36 Amps to operate. A 60 watt bulb draws **half a Amps** to operate.

## What is the current that flows through a 60 W light bulb if it is connected to a 110 V source?

So the calculation is divide the Wattage by 110. For example: A 40 Watts bulb draws 0.36 Amps to operate. A 60 Watts bulb draws **0.54 Amps** to operate. A 80 Watts bulb draws 0.72 Amps to operate.

## How do I calculate current?

The current is the ratio of the potential difference and the resistance. It is represented as (I). The current formula is given as **I = V/R**. The SI unit of current is Ampere (Amp).

## How many 60 watt bulbs can you connect before tripping a 15 amp circuit breaker?

Assuming a 60 watt light, you can put **up to 24 lights** on a 15 amp breaker. If you are using low-wattage LED bulbs, an LED bulb using 10 watts, you can install up to 150 bulbs on a single circuit. We do not recommend this because you can’t use bulbs other than LED without exceeding the 15 amps and tripping the circuit.

## How do you calculate the current in a light bulb?

We are given the voltage and the power output of a simple circuit containing a lightbulb, so we can use the **equation P=IV** to find the current I that flows through the lightbulb. 19.51P=IVI=PV=60 W120 V=0.50 A. Thus, a half ampere flows through the lightbulb when 120 V is applied across it.

## Which light bulb draws the most current?

(a & b) **bulb C** is the brightest and draws the most current. Since it is connected across the terminals of the battery, bulb C “sees” the full voltage of the battery, but bulbs A and B “see” only half of the battery voltage.

## How many amps does a 12 volt light bulb draw?

Amp draw is a simple mathematical calculation. Divide the total number of watts by the system’s volts. For example, a 100-watt bulb in a 12-volt system will draw **8.3 amps**.

## How many amps does a table lamp use?

Ratings of commonly used household appliances

Domestic Portable Appliance | Amps Used | Watts Used |
---|---|---|

Printer | <0.5 | 50 |

Radio | <0.5 | 15 |

Radiator or Fan Heater | Up to 13 | Up to 3000 |

Desk lamp (with 60 W lamp) | <0.5 |
60 |