A person with body resistance between his hands of 10.0 kΩ accidentally grasps the terminals of a 20.0-kV power supply. (Do NOT do this!) If the internal resistance of the power supply is 2000Ω , what is the current through his body?

Q: A 100-W lightbulb has a resistance of about 12 ΩΩwhen cold (20 ∘C) and 148 Ω when on (hot).…

A: resistance when hot (R) = 148Ω resistance when cold (R0) = 12Ω Temperature of filament when cold…

Q: A copper wire has a resistance of 0.480 Ω at 20.0°C, and an iron wire has a resistance of 0.519 Ω at…

A: We have given Resistance of copper wire (Rc)=0.480 ohmTemperature (T)=20°CResistance of Iron  wire…

Q: A copper wire has a resistance of 0.500Ω at 20.0ºC, and an iron wire has a resistance of 0.525Ω at…

A:

Q: Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.15…

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: Person with body resistance between his hands of 10.0 kΩ accidentally grasps the terminals of a…

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Q: You need a 45 W resistor, but the stockroom has only 20 W and 50 W How can the desired resistance be…

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Q: Find the equivalent resistance of the combination of resistors shown in the figure below. (R, = 2.02…

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Q: 3. A 10.0 m long RG-6 coaxial cable has an inner core of copper with a diameter of 7.112 mm. a.…

A:

Q: Consider the circuit shown below, where E1 = 12 V, E2 = 19 V, E2 = 7 V, R1 = 200 Ω, R2 = 300 Ω, R3 =…

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Q: What other physical factors, besides resistively, help to determine the resistance of a conducting…

A: Step1: Let us understand the concept of the problem.   Resistance of a conducting wire is given by :…

Q: The resistance of a rod with a length of 3.0 m and a diameter of 1.0 cm is 56.0 N. If this rod is…

A: Let the resistivity of the rod is denoted by ρ, the rod’s length is denoted by l and the rod’s area…

Q: battery produces a current of 0.6 A when the external resistance is 2 ? and 0.2 A when the external…

A: Current I = E/R+r E =emf R = external resistance r = internal resistance

Q: A certain lightbulb has a tungsten filament with a resistance of 18.5 N when cold and 136 N when…

A:

Q: A copper wire has a resistance of 0.500 Ω at 20.0ºC , and an iron wire has a resistance of 0.525 Ω…

A: Given that, Resistance of copper wire is Rc=0.500 Ω at T0 = 20 oC Resistance of iron wire is…

Q: current of 0.080 A passing through a human body could be fatal. If you accidentally touched a 110 V…

A: Given V = 11O V I = 0.080 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 person notices a mild shock if the current along apath through the thumb and index finger exceeds…

A: Maximum current to avoid the shock = 80 uADry skin resistance = 4×105 ΩWet skin resistance = 2 ×103…

Q: Can a copper wire and an aluminum wire of the samelength have the same resistance? Explain

A: The expression for resistance is, R=ρLA        (I)           L=length of wire,A=area of…

Q: The potential difference across a resting neuron in the human body is about 83.0 mv and carries a…

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

A: Given - Diameter of tungsten filament ,d = 0.100 mm =0.100 x 10-3 m  Resistance of tungsten…

Q: A copper wire has a resistance of 0.500 Ω at 20.0oC ,and an iron wire has a resistance of 0.525 Ω at…

A: Given:- Copper wire resistance Rc = 0.5 ohm at 20 degrees. Iron wire resistance Ri = 0.525 ohm To…

Q: An ordinary light bulb is marked “60W, 120V". Its resistance is 60 N 15 N 120 N 180 N 240 N

A: Given that                      The power of the bulb is (P) = 60W  and              voltage (V) =…

Q: Find the equivalent resistance of the combination of resistors show 1.50 p2 R1 8.00 u2 R2 0.75 p2…

A: According to company policy, only 1st question will be answered here. Please post the rest…

Q: A copper wire has a resistance of 0.400 Ω at 20.0°C, and an iron wire has a resistance of 0.426 Ω at…

A: To determine: The temperature at which the resistance of the copper and iron will be equal   Given:…

Q: A device experiences a voltage drop of 4.0 V across it while a current of 4.0 mA flows through it.…

A: It is given that,

Q: How many joules of energy are necessary to run a washing machine for 30 minutes if it is hooked up…

A: We know,  Power, P= V2/R  Energy dissipated, E = P * t = V2 × t /R  Given,  V = 220 V R = 10ohms t =…

Q: A high tension (HT) supply of, say, 6 kV must have a very large internal resistance. Why?

A: Given:  V = 6 kV

Q: etermine the resistance of a 1-mile length of 12-gauge copper wire. Given: 1 mile = 1609 meters and…

A: let resistance be R Formula for resistance of a wire=> R=ρlA where ρ is resistivity of the…

Q: An electric lamp whose resistance, when in use, is 2 Q is connected to the terminals of a dry cell…

A: Write the variable with the given values.

Q: the 0.145 mm diameter tungsten filament in a light bulb is to have a resistance of 0.185 Ω at…

A:

Q: The resistance of a rod with a length of 3.0 m and a diameter of 1.0 cm is 56.0 Ω. If this rod is…

A: Resistance is an electrical component that prevents the flow of electric current through the…

Q: A portable coffee heater supplies a potential difference of12.0 V across a Nichrome heating element…

A: Given:Potential difference = 12 VResistance of nicrome element = 2 ohms

Q: A certain lightbulb has a tungsten filament with a resistance of 21.7 2 when at 20.0°C and 144 2…

A: Given : resistance of tungsten filament at 20 °C, R20 = 21.7 Ω Resistance of tungsten filament at…

Q: The power rating of the heater a Nichrome wire that has a total resistance of (8 N) and carried a…

A: Solution: Calculate the potential difference across the Nichrome wire. V=IR Here, V is the voltage,…

Q: The resistance of a rod with a length of 3.0cm and diameter of 1.0 cm is 56.0Ω. If this rod is…

A: The resistance of a wire is given by  R =ρLA where, L is the length and A is the area, ρ is the…

Q: Four 1.5 V cells are connected in series to a 12 ohm light-bulb. If the resulting current is 0.45 A,…

A:

Q: consider a portable electric blanket that runs on a 1,5 V battery. ıf you use copper wire with a 1…

A: Given data: Battery Voltage (V) = 15 V Wire Diameter (D) = 1 mm = 1×10-3 m Power (P) = 10 W…

Q: A video game device requires six 1.50 V AA batteries in series, which can move a charge of 250 C.…

A: Current = potential/ resistance Also, current = charge/time

Q: Gold is the most ductile of all metals. For example, 2 gram of gold can be drawn into a wire 2.4 km…

A:

Q: A storage battery of emf 6.4 V and internal resistance 0.080 ohm is being charged by a current of 15…

A: Given data:  AA storage battery charged by the current  Emf (ε) = 6.4 V Internal resistance (r) =…

Q: The temperature coefficient of resistance of a wire is 0.00125 per degree celcius. At 300K its…

A: Given  Temperature coefficient, TRC = 0.00125 /°C  At ,T1 = 300 K , Resistance, R1= 1 ohm for…

Q: A 100 W light bulb designed to operate at 120 V has a filament with a resistance of 144 Ω.  What…

A: The metal or conductor which have high melting only those materials used as a bulb filament because…

Q: Two wires of equal length, one of aluminium and the other of iron, have the same resistance. Which…

A: Since the relative density of aluminium is less than that of iron, the mass of aluminium wire of the…

Q: If a certain silver wire has a resistance of 9.00 Ω at 40.0°C, what resistance will it have at…

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Q: A 100-W lightbulb has a resistance of about 12 Ω when cold (20 ∘C) and 124 Ω when on (hot). Estimate…

A: In metals, the value of the resistance changes with an increase in the value of temperature and thus…

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) =…

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.