maximum possible voltage without shock across the thumb and index finger with a dry-skin resistance of 3.8 x 10°n and a wet-skin resistance of 1,900 .

Q: 19.  In her bathroom, Mindy has an overhead heater that consists of a coiled wire made of nichrome…

A: The objective of this question is to find the current through the wire when it is first turned on.…

Q: A person notices a mild shock if the current along a path through the thumb and index finger exceeds…

A: V = IR

Q: A current of I = 3.5 A passes through the circuit shown, where R= 35 Q. 3R 5R 2R 6R 2R 7R ww 5R ww…

A:

Q: Given that R1 = 2.40 Ω, R2 =  5.10 Ω, R3 = 1.80 Ω, R4 = 3.50 Ω, R5 = 3.60 Ω. (b) Find the equivalent…

A: (b) The equivalent resistance of the combination of R3 and R2,4  R2 and R4 are in series…

Q: The resistance of the path is 482 Ω and a 13.3 mA current is needed. What voltage should be applied

A: Resistance is R=482 Ω Current is I=13.3 mA Note: 1 A=1000 mA Find: Required voltage.

Q: Suppose the operating resistance of a flashlight bulb is 2.1 Ω, and is powered by a 1.56 V alkaline…

A: The current :I = 0.711 A The power :P = 1.06 wattsExplanation:Approach to solving the…

Q: Given the circuit in Fig 2; R1, R2 and R3 are resistances of 3, 4 and 5 ohms respectively. Calculate…

A:

Q: A coil of copper wire has a length of 10 m. The cross sectional area of the wire is 0.2 mm2. Note:…

A:

Q: What voltage is required to be applied during open-heart surgery to utilize a defibrillator for…

A:

Q: A person notices a mild shock if the current along a path through the thumb and index finger exceeds…

A: The current along the path through the thumb and index finger is, The resistance of the dry skin…

Q: The given problem concerns a high-voltage transmission line. Such lines are made of bare wire; they…

A: Given: length of the wire = 100  km The resistance of the wire = 7 ohm Current in the wire = 200 A…

Q: For a medium-well steak, the FDA recommends steak to be cooked to the temperature of 145 degrees F.…

A: Due to the flow of the current through the circuit, there is some heat that will be produced…

Q: During surgery, a current as small as 20.0 µA applied directly to the heart may cause ventricular…

A: Current, I =  20 μAResistance, R = 253 Ω

Q: 18.  In the physics laboratory, Oscar measured the resistance between his hands to be 1.80 kΩ. Being…

A:

Q: A toaster is rated as drawing 850 W of power at 120 V. The cord of the toaster is connected to an…

A:

Q: Find the equivalent resistance between points A and B in the drawing. Assume R1 = 2.70 Q, R2 = 6.10…

A: R1 = 2.7 ohm R2 = 6.10 ohm R3 = 2.60 ohm R4 = 3.90 ohm R5 = 3.80 ohm R6 = 2.90 ohm R7 = 4.30 ohm

Q: Ra by C a 20 2 82 12 0.5Q

A: The three currents. given, Circuit diagram,

Q: A Van De Graaff generator is used to charge a metal sphere of 25-cm diameter metal that produces a…

A:

Q: A person grasps the ends of an electrically conducting copper wire in each hand. The wire has a…

A:

Q: The voltmeter V reads 3.11V, when switch S is open . When the switch is closed, the voltmeter…

A:

Q: consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.5…

A: Given data: Battery Voltage (V) = 6 V Wire Diameter (D) = 0.5 mm = 0.5×10-3 m Power (P) = 25 W…

Q: An automobile battery has an emf of 12.6 V and an internal resistance of 0.0500 2. The headlights…

A:

Q: 17-2.A given copper wire has a resistance of 5.18 Ω at 20.0°C while a tungsten wire of the same…

A: Given, resistance of copper wire at  20.0°C , Rcu = 5.18 Ω            resistance of tungsten wire at…

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.