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

Q: If the 0.100-mm diameter tungsten filament in a light bulb is to have a resistance of 0.200 Ω at…

A: The area is,

Q: The 120 V electric heater in a coffee maker has a resistance of 15 Ω. How long will it take for this…

A: Given: The voltage of electric heater is V=120 V. The resistance of electric heater is R=15 Ω. The…

Q: 16. What is the power dissipated in Watts by the 9-ohm resistor? Write the answer in whole number.…

A:

Q: If the 0.100-mm diameter tungsten filament in a light bulb is to have a resistance of 0.200Ω at…

A: Given

Q: The ammeter shown in the figure below reads 2.16 A. Find the following. 15.0 V 7.00 N 5.00 0 A 2.00…

A:

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: At what rate is thermal energy generated in the 30 0 resistor given that ɛ = 33 V? 100 300 50 50 O…

A: Given: The emf of the battery is 33 V. The circuit diagram is given below.

Q: The ammeter shown in the figure below reads 2.16 A. Find the following. 15.0 V 7.00 N 5.00 N + 2.00…

A:

Q: 15.0 V 7.00 N 5.00 N A 2.00 N

A: Solution: (a) Consider the loop with current I1. Apply the Kirchhoff's voltage law.…

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

A:

Q: What is the current drawn by a 9.60 Ohm hair dryer, which uses 5.40 x 10$ Joules of energy, if it is…

A: Given: Resistance (R) = 9.6 ohms Energy used (E) = 5.40 x 105 J Time used (t) = 6 minutes = 360 sec…

Q: How much current does a 300.0 W device draw when 12 V is placed across it? O 4.2 × 10² A O 3.6 × 10ª…

A:

Q: 9. A Galvanometer has an internal resistance of 120 ohm with a maximum allowed current of 250 µA. If…

A: Answer is Option (a) The expression used to calculate shunt resistance is S=IgGI-Ig

Q: A 150 W heating coil (like a light bulb) is designed to operate from 125 V. The coil is made from a…

A:

Q: Question #13. Calculate the current in Resistor 4 (R4). V1 +) 10V R3 R1 R2 12 12 R4 122

A:

Q: What current flows through a resistor if 1260 C of charge moves through it in 5.0 minutes?

A: Given data: Charge (q) = 1260 C Time (t) = 5.0 minutes Required: Current (I)

Q: A high-voltage electricity transmission line is hung from metal towers with glass insulators having…

A: Given Resistance of wire = 0.85 × 109 Ω  Applied voltage = 180 kV We have to calculate the current

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

A: We know that Current  I =P/V I=30/120 I=0.25A

Q: What is the power in watts of a 2.40 ✕ 102 MV lightning bolt having a current of 1.87 ✕ 104 A?

A: Given,Vo=2.4*102MV or 2.4×108VoltsIo=1.87×104A

Q: What is the required resistance of an immersion heater that increases the temperature of 1.50 kg of…

A: Write the given values with the suitable variables. m=1.50 kgT1=10 °CT2=50 °Ct=10 min=600 sV=110 V…

Q: A car owner forgets to turn off the headlights of his car while itis parked in his garage. If the…

A: Since there is two 2 headlights the total power is 72W

Q: Compute for the current in in the circuit shown below. 1,0895 A ○ 1.0745 A ○ 1.0872 A ○ 1.0724A a 5…

A:

Q: 1. What is the current moving through a wire that has 0.60 C of electrons passing through a point in…

A: Note : As per guidelines i can answer the first question only (Since, given question is not a multi…

Q: How many electrons flow through a battery that delivers a current of 4.0 A for 12 s? 4.8 x 1015 4.0…

A: Electric current is the measure of the quantity of charge passing any point of the wire per unit of…

Q: A 10 N component is connected to a 12 V battery. How much energy is expended per second?

A: Given:- R= 10 Ω V= 12 V Find:-  How much energy expended per second?

Q: What is the total current if the total voltage is 180 V? R₁ 20 n ≥30~ 40 R2 R3 MWO

A:

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

A:

Q: The sticker on a compact disc (CD) player says that it draws 288 mA (milliampere) of current when…

A: Given: The voltage is 9 V. The current is 288 mA. Introduction: The power in the circuit is…

Q: Your laptop has a power rating of 100 W. If your laptop represents a resistance of 1.91 kQ, what is…

A: Given data:  Power (P) = 100 W Resistance (R) = 1.91 kΩ = 1910 Ω Required: The maximum current (I)

Q: A 2.0 kW heater element from a dryer has a length of 80 cm. If a 10 cm section is removed, what…

A:

Q: If a lamp has resistance of 120 W when it operates at 100 W, what is the applied voltage?  a. 110 V…

A: The relation between power, voltage and resistance is P =V2RWhere, P =powerR =resistanceV =voltage

Q: The resistance of a 60.-watt lightbulb operated at 120 volts is approximately (1) 720 Q (2) 240 Q…

A: Power P=VI  Also V=IR  R=V/I

Q: 4. Given a DC battery of 12.0 volts connected to a single resistor of 3.00 Ohms. What current goes…

A:

Q: How much power is dissipated in the 5Ω resistance? a) 7.62 w b) 11.02 w                       c)…

A: Giv3n : A circuit diagram with supply voltage 12 V.

Q: The heating element of an iron operates at 110 V with a current of 7 A. (a) What is the resistance…

A: Potential difference across the iron, V=110V Current across iron, I=7A Let the resistance and the…

Q: Two different 12-V automobile batteries on a store shelf are rated at 600 and 850 “cold cranking…

A: When a cell is connected across a circuit then the current starts flowing from one point to another…

Q: Voltage (V) Current (1) Power (P) 2 0.0052 4 0.0104 0.0156 8 0.0208 10 0.0260 12 0.0312 14 0.0364 16…

A:

Q: If the 0.100-mm-diameter tungsten filament in a light bulb is to have a resistance of 0.200Ω at 20.0…

A: diameter of tungsten (d) = 0.10 mm Radius of the bulb (r) = 0.05 mmResistance of the bulb (R) =…

Q: ugh the bulb of a 2.

A: GivenV=2.97 VR=3.58 Ω

Q: The power consumed by a device drawing a 0.8 A when connected to 120 V is A) 12 W B) 15 W C) 60 W D)…

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.