A potential difference of 14 V is found to produce a current of 0.43 A in a 2.9 m length of wire with a uniform radius of 0.39 cm. Find the following values for the wire. (a) the resistance (in Ω) Ω (b) the resistivity (in Ω · m) Ω · m
A potential difference of 14 V is found to produce a current of 0.43 A in...
3. A potential difference of 12 V s found to produce a current of 0.40 A in a 3.2 m length of wire with a uniform diameter of 0.80 cm. a) What is the value of the resistivity of the wire, and b) the resistance of the wire? Equations that are appropriate for this exam. If you use an equation, variable, etc. that is not listed below, you need to show the complete derivation of the alternate for credit. 1/Rp...
You apply a potential difference of 4.3 V between the ends of a wire that is 2.2 m in length and 0.662 mm in radius. The resulting current through the wire is 17.6 A. What is the resistivity of the wire? (Give your answer in scientific notation using Ohm.m (Ω.m) as unit)
What voltage will produce 0.35 A of current through a 4800-Ω resistor? A 9.0-V battery is connected to a bulb whose resistance is 2.2 Ω How many electrons leave the battery per minute? What is the resistance of a 7.4-m length of copper wire 1.4 mm in diameter? The resistivity of copper is 1.68×10−8Ω⋅m A 12-V battery causes a current of 0.72 A through a resistor. What is its resistance? How many joules of energy does the battery lose in...
There is a potential difference of 1.1 V between the ends of a 10 cm long graphite rod that has a cross-sectional area of 0.90 mm2. The resistivity of graphite is 7.5 x 10-6 2-m (a) Find the resistance of the rod. (b) Find the current (c) Find the electric field inside the rod
004 (part 1 of 2) 10.0 points Calculate the resistance per unit length of a nichrome wire, which has a radius of 0.16 mm. The resistivity of nichrome is 1.5x 10-6 Ω . m. Answer in units of Ω/m. 005 (part 2 of 2) 10.0 points If a potential difference of 17 V is maintained across a 7.1 m length of the nichrome wire what is the current in the wire? Answer in units of A
004 (part 1 of 2) 10.0 points Calculate the resistance per unit length of a nichrome wire, which has a radius of 0.443 mm. The resistivity of nichrome is 1.5 x 10-6 Ω . m. Answer in units of Ω/m. 005 (part 2 of 2) 10.0 points If a potential difference of 12 V is maintained across a 9.4 m length of the nichrome wire, what is the current in the wire? Answer in unis of A
Question (part 1 of 2) Your respons Calculate the resistance per unit length of a nichrome wire, which has a radius of 0.115 mm. The resistivity of nichrome is 1.5x 10-6 Ω . m. Answer in units of Ω/m Question (part 2 of 2) Your response.. If a potential difference of 15 V is main tained across a 5.3 m length of the nichrome wire, what is the current in the wire? Answer in units of A
The figure gives the electric potential V(x) along a copper wire
carrying uniform current, from a point of higher potential Vs =
13.0 μV at x = 0 to a point of zero potential at xs = 3.20 m. The
wire has a radius of 1.70 mm, and copper has a resistivity of 1.69
× 10-8 Ω·m. What is the current in the wire?
V (V) 0 Xs x (m)
There is a potential difference of 1.9 V between the ends of a 20 cm long graphite rod that has a cross-sectional area of 1.3 mm^2. The resistivity of graphite is 7.5 x 10^-6 ohm-m. Find the resistance of the rod. Find the current. Find the electric field inside the rod.
Please answer all parts! Thanks.
I. It is desired to construct a solenoid that will have a resistance of 6.00 Ω at 20°C and produce a magnetic field of 4.00 × 102 T at its center when it cames a current of 3.40 A. The solenoid is to be constructed from copper wire having a diameter of 0.500 mm. If the radius of the solenoid is to be 1.00 cm, determine the following. (The resistivity of copper at 20°C is...