An appliance is rated at 600 Watts when supplied by a 120 volt electrical supply. What current will flow through it (in amps)?
An appliance is rated at 600 Watts when supplied by a 120 volt electrical supply. What...
An ohmic appliance is rated at 60 W when it is connected to a 120-V source. A)If the power company cuts the voltage by 6 % to conserve energy, what is the current in the appliance? Express your answer using two significant figures. I=____A B)What is the power consumed by the appliance after the voltage drop? Express your answer using two significant figures. P=___W
PROBLEM 4.3 A coil connects to a 120 volt, 50 hertz alternating voltage source; as it's shown in the following. Obtaining the following readings: Wattmeter reading = 15 watts Ammeter Reading = 7.5 Amps A) Calculate the effective resistance when the coil has a rolled steel core, if it has a power consumption of 20 watts and a current of 6 amps B) Calculate the effective resistance when the coil has a solid cast iron core, and dissipates a power...
A 80-Ω electrical appliance and a 120-Ω electrical appliance are plugged into the outlets of a house. By what factor will the power used change if an additional 150-Ω electrical device is plugged in?
A 600 watt hair dryer is connected to a 120 volt outlet for a time of 2.0 minutes. a) What is the current (in amperes) in the dryer? b) The resistance of the dryer (in ohms) is? c) The energy (in Joules) supplied to the dryer was? d) If all of the energy were converted to heat, how many calories of heat would be generated? 1 calorie = 4.186 Joules.
Please fully explain 6) A particular light bulb is rated at 75 Watts when a voltage of 110 volts is placed across it. a) What is the electric current through the light bulb in this circumstance? b) What is the resistance of the light bulb? light bulb, should the resistance of the light bulb be lowered or raised from that in part b above if 0.682 A 1612 c) In designing a new wattage the power of the light bulb...
The capacity of a storage battery, such as those used in automobile electrical systems, is rated in ampere-hours (A · h). A 50-A · h battery can supply a current of 50 A for 1.0 h, or 25 A for 2.0 h, and so on. Consider a 12.0-V battery that has an internal resistance of 0.26 Ω and a capacity of 55.8 A · h. The battery is charged by passing a 9-A current through it for 6.2 h. (a)...
what resistance would produce a current of 120 amps from a 6-volt battery?
A 13 Volt power supply is connected to two resistors in series of resistance R1 = 127 ohms and R2 = 585 ohms. What is the current through the circuit in mA (milli-Amps)?
A typical electric water heater has a heating element rated at 4500 Watts and is connected across a 240 Volt power source. When operated normally, find the resistance of the heating element, the current drawn by the heating element, and the cost of heating water for 45.0 minutes. Assume electricity costs $.10/kw * hr
No handwriting What happens when a voltage greater than the rated voltage is applied to an electrical appliance?