A stove element draws 12 A when connected to a 110-V line. How long (min) does it take to consume 150 kJ?

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: The value of voltage V is 30 10V수 20

A: Given that, V1=10 VR1=2 ΩR2=3 Ω Net resistance is: R=R1R2R1+R2=2×32+3 Ω=1.2 Ω

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

A:

Q: A heating element is marked 210 V, 630. What is the value of the current drawn by the element when…

A: The heating element is marked with the the maximum voltage and power it can endure. In this case it…

Q: A 1.00-MΩ voltmeter is placed in parallel with a 75.0-kΩ resistor in a circuit. If the current…

A: Assume the resistance of the resistor is R1 = 75.0 kΩ. Assume the resistance of the voltmeter is R2…

Q: The resistance of an electric heater is 25 Ω when connected to 120 V. How much energy does it use…

A: Given: Resistance of the electric heater, R = 25 Ω  Potential difference, V = 120 V time duration of…

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

A: Given, P= 30 W V= 120 V t= 2.1min = 2.1*60= 126 sec

Q: An electric device connected to 220 v draws a current of 4.55 A. It is operated 8 hours a day. If…

A:

Q: The heating element of a 110-V, 1500-W heater is 3.8 m long.If it is made of iron, what must its…

A:

Q: A 12-V auto battery is rated at 36 Ah. If a 100-W, 12-Vdc bulb is connected across this battery,…

A: Given that,  Voltage = 12 V Charge = 36 Ah Power = 100 W

Q: A PlayStation draws a current of 143 mA at 120 V. How much power (in W) does the device require?

A: Given:- Current drawn by the playstation is  I=143 mA   =143 mA×1 A103 mA   =0.143 A Votltage is…

Q: A 2.5 kW heater element from a dryer has a length of 59 cm. If a 12 cm section is removed, what…

A: Given values:Power of heater element, P = 2.5 KwInitial length of dryer, Li = 59 cm = 0.59 mFinal…

Q: Suppose your portable DVD player draws a current of 350 mA at 6.00 V. How much power does the player…

A: Given- Current drawn by DVD player , I = 350 mA = 0.350 A Voltage across  DVD player , V = 6.00  V

Q: An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, thepower consumed will be…

A: The electric power (P ) is calculated as, Where, P = power V = voltage across the resistance R =…

Q: If the current in a 330 W resistor s 15 mA, the applied voltage is approximately ____?

A: Given data: Power (P) = 330 W Current (I) = 15 mA Required: Voltage (V)

Q: How long does it take 1.00 C of charge to flow through a handheld calculator if a 0.33 mA current is…

A: Electric current can be defined as, I=dQdt, where dQ is the amount of charge flowing through a given…

Q: A 16.27 Ω resistor is connected to a battery that has an internal resistance of 0.76 Ω.  If the…

A: The expression for current through the resistor, I=∆VRI=11.08V16.27ΩI=0.68A

Q: How much current must be applied across a 60 light bulb filament in order for it to consume 55 W of…

A: Given data:  Resistance (R) = 60 Ω Power (P) = 55 W Required: Current (I)

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: A toaster is rated at 600 W when connected to a 150-V source. What curent does the toaster carry,…

A: Power of toaster (P) = 600 W Voltage (V) = 150 volts

Q: If the emf of the battery is 9.0 V, what is its terminal voltage when the switch is closed if the…

A:

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

A:

Q: A hair dryer draws 9.3 A when plugged into a 120-V line. How much charge passes through it in 19…

A:

Q: What current must be produced by a 12.0-V battery-operated bottle warmer in order to heat 75.0 g of…

A:

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,…

A:

Q: Why does the total emf of dry cells in series not equal the reading in the voltmeter?

A: The electromotive force is the measure of energy that is given to each coulomb of charge, whereas…

Q: What is the resistance (in Ω) of a 9.00 ✕ 102 Ω, a 2.90 kΩ, and 5.00 kΩ resistor connected in…

A: Given data:  R1 = 9.00 ×102 Ω = 900 Ω R2 = 2.90 kΩ = 2900 Ω R3 = 5.00 kΩ = 5000 Ω Resistors are…

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: 30.0 0 20.0 T 25.0 V S 75.0 Ω 50.0 FE=?

A: S.I unit if Voltage is Volt denoted by  V . S I unit of Current is Ampere denoted by A.  To solve…

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: current a) in the 4.00V battery, b) in the 3.002 resistor, c) in the 8.00V battery,

A:

Q: An extension cord made of two wires of diameter 0.129 cm (no. 16 copper wire) and of length…

A: Write the expression for the power dissipated. Here I is the current, and R is the resistance. The…

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

A: power of a bulb   P = VI And we know that  current is flow of electron in per unit time  I = q /t…

Q: A 230 V, 1kW electric oven is by mistake connected to 115 V power line that also has a 15 A fuse.…

A: The resistance offered by the oven is given as  P=V2RR=V2PHereP is the Power rating of the ovenV is…

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

A:

Q: if Vs = 15 V and R1 = 1.5 k ohm and the voltage on R1 is 4.69 V. find the value of R2

A:

Q: Tripling the voltage applied across an ohmic rod will A. make the protons move three time faster. B.…

A:

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

A:

Q: a copper wire is 2.50m long and has a diameter of 2.5 mm. How much current will it draw when…

A: Given data:  A copper wire  Length (L) = 2.50 m Diameter (d) = 2.5 mm = 2.5×10-3 m Voltage (V) = 3.5…

Q: 12 V 2.0 2

A:

Q: The power absorbed by the resistor in the following circuit is: 10 kN 5 V I

A: Given, Resistor, R=10 kΩ Voltage, V=5 V Power absorbed P by the resistor is a positive quantity,…

Q: The amount of current in a CFL rated 23W 120 V is about A) 0.2 A B) More than 5.2 A C) 5.2 A

A: Given data:  Power rating (P) = 23 W Voltage (V) = 120 V Required: Current (I)

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

A: Given:-  Power P = 30 W V= 120 V  time t= 4.1 min = 4.1 X 60=246 sec  Find:-  how much charge…

Q: An electric device connected to 220 v draws a current of 4.55 A . It is operated 8 hours a day. If…

A: a) Current through the device is I = 4.55A Voltage is V = 200V Time = t = 8hour  power = P =VI…

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.