A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light bulb in 3.9

Q: How many ohms of resistance are present in a light bulb that has 6A at 120 volts? O 10 0 O 20 0 O…

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Q: A clothes dryer uses 20 A of current.  How much charge flows through the circuit in a single 60…

A: The current in a circuit is defined as the charge flowing though a point in the circuit in unit time…

Q: A light bulb is rated at 30 nen operated at 120 V.

A: Given values,   P=30 watt, V=120 volt, t=9min=9*60=540 sec The rate of flow change is known as…

Q: when operated at 120 V. How much charge enters (and leaves) the light bulb in 8.7 min?

A: See solution on next page

Q: A heater is rated as 240 V, 10 kW. How much current does it draw?

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Q: How many watts does a flashlight that has 6.00×102C pass through it in 0.500 h use if its voltage is…

A: Given, Charge 6.00*102 C Time t is 0.500 hours And voltage is 3.00 V

Q: When connected to a 120-V source, an electric heater is rated at 1200 V and a toaster at 6.0x102 V.…

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Q: An 20.2 W device has 9.01 V across it. How much charge goes through the device in 4.20 h?

A: Power of the device (P) = 20.2 Wpotential difference (V)= 9.01 VTime (t) = 4.20 hoursusing 1 hour =…

Q: In 1.0 second, a battery charger moves 0.52 C of charge from the negative terminal to the positive…

A: Given data:  Charge (q) = 0.52 C Voltage difference (ΔV) = 1.5 V

Q: A light bulb operating at 110 V draws 1.20 A of current. What is its resistance? 109 Q 78.6 Q 154 Q…

A: Given data:  Voltage (V) = 110 V Current (I) = 1.20 A Required: Resistance (R)

Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…

A: We know that V=IR                                where V= voltage…

Q: continuously

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Q: An electric device draws 2.5 A at 240 V. If the voltage drops by 35% what will be the current (in…

A: Given, Current I=2.5 A Voltage V=240 V

Q: A mobile phone charger draws O.2 A of current from the 120 V wall outlet. How much energy does it…

A: Energy = Power × Time # Power = IV where I is current and V is voltage P = (0.2)120 = 24 Watt =…

Q: A water heater that is connected across the terminals of a 15.0 V power supply is able to heat 250…

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Q: The wattage marked on a lightbulb is not an inherent property of the bulb, but depends on the…

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Q: What is the ratio of resistance , if two bulbs have ratings of 40 W , 220 V and 20 W,110 V .

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Q: An incandescent light bulb is rated at 42.5 W when operated at 99.7 V. How much charge (in C) passes…

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Q: In the circuit below, how much voltage is used by A? 150 A B 50 0.6 V O 0.15 V O 0.3 V O 0.45 V 1.5V…

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Q: An electric dryer consumes 6.0 x 10° joules of energy when operating at 220 volts for 30 minutes.…

A: Given data:  Energy (E) = 6.0×106 J Voltage (V) = 220 V Time (t) = 30 minutes Required: Current (I)

Q: The largest number of 100 W electric light bulbs which can be operated from a 240 V supply fitted…

A: Given100 W electric bulbsVoltage=240 VMaximum possible Current (I)= 13 A

Q: Appliances that require a lot of power, such as a dryer or a stove, typically run on 240 V, and…

A: Given:   Initial Power, P1 = 4461 W Initial Voltage, V1  = 240 V  Final Voltage, V2 = 120 V     To…

Q: The following appliances are connected to a single 120 V, 15 A circuit in a kitchen: a 330 W…

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Q: An electric device delivers a current of 5 A for 10 seconds. How many electrons (1.6x10-19 C) flow…

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Q: A heating element in a toaster dissipates 900 W when run at 120 V. How much charge passes through…

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Q: The heating element in a clothes dryer is rated at 5 Kw and 220 V. How much current does it draw?

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Q: Four 2.2 V cells are connected in series to a 8.0 N light bulb. If the resulting current is 0.75 A,…

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Q: A light bulb has a resistance of 360Ω when turned on. How much current in will flow thru it when it…

A: Given, Resistance=r=360 Ω volatge=v=220 V let current i flow through bulb from ohms law we know the…

Q: An electric heater is operated by applying a potential difference of 50.0 V across a wire with a…

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Q: A microwave oven draws 8 A when supplied with 120 V. The microwave is subsequently used for 6…

A: To find the electrical energy used by microwave

Q: An electric heater is constructed by applying a potential difference of 99.6V across a wire with a…

A: Power = V2/R

Q: An electric space heater has a resistance of 8.10 ohms. How much energy does it use when connected…

A: Given data:  Resistance (R) = 8.10 Ω Voltage (V) = 110 V Time (t) = 30 minutes Required: Energy (E)

Q: If a 60 W electric heater has a current of 4 A at 20°C, what will be the resistance if its…

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Q: Electric heater is used to heat 0.63 liters/minute of 3. water (c, = 4.18 kJ/kg.K, density =1000…

A: 0.63lit=0.00063m3Mass of 0.00063m3=0.00063m3×1000kg/m3=0.63kg Heat reqired to raise the temperature…

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Write a given values of this question. P=30WV=120Voltt=1min=1×60=60sec

Q: A light bulb is rated at 300 W when operated at 120 V. How much charge in C enters (and leaves) the…

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Q: How much charge (in C) passes

A: Given data:     The rated power of bulb is: P = 35.6 W The operating voltage is: V = 93.8 V The…

Q: When a 24 resistor is connected across a 12 V battery, a current of 482 mA flows. What is the…

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Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Here given the light operated at 30  W at 120 V. We have to calculate the amount of charges that…

Q: What voltage must be supplied to a lightbulb with hot resistance 820 Ω if it is in series with a…

A: Use the ohm’s law to solve for the voltage source.

Q: 12 V 2.0 2

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Q: How many electrons flow through a battery that delivers a current of 3.0 A for 12 s?

A: Given current flowing through a battery = I = 3.0 A time for flow of current = t = 12 s we have to…

Q: An electric heater is constructed by applying a potential difference of 121.9V across a wire with a…

A:

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.