Answered: A conductor has a cross-sectional area… | bartleby

Related questions

Question

A conductor has a cross-sectional area of 2.3x10- m2 and the number of free electrons per unit volume is 8.5x1028 electron/m, When the current is 15.2 A, find the
drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1,6x10-19 C.
Select one:
A. 0.33
B. 48.59
C. 63.79
D. 0.64
E. 0.49

Expert Solution

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

A 50-A current is running through a cylindrical wire that has a cross-sectional area of 4.0 mm2. The drift velocity of the conduction electrons in the wire is 0.85 mm/s. What is the numebr density of the conduction electrons in the wire? a. 9.2 x 1028 electrons/m3 b. 1.4 x 1029 electrons/m3 c. 3.2 x 1030 electrons/m3 d. 4.6 x 1028 electrons/m3 e. 5.7 x 1029 electrons/m3
What is the electron drift speed?
Problem 7 A cylindrical platinum wire is 0.0644 mm in diameter and 1.05 m in length. The wire carries a 1.05 A current. Assume there is one free electron (q = -1.602x10-19 C) per platinum atom. Avogadro's number is 6.022x1023 atoms per mol. Platinum has a density of 21.5 g/cm³, a molar mass of 195 g/mol, and a resistivity of 10.6x10-8 Qm. (a) Find the the current density (j), in units of A/m². (b) Find the number density of free electrons (n), in units of m-3. (c) Find the drift velocity of electrons in the wire (va), in units of m/s. (d) Find the magnitude of the electric field in the wire, in units of N/C. (e) Find the potential difference across the wire, in units of Volts.
4.00 kn R3 3. Using Kirchhoff's rules, T70.0 V v 80.0 V a. Find the current in each resistor shown in the figure R2 3.00 k2 b. Find the potential diffrences between points c and f. 2.00 k2 a f R1
1. a) Find the magnitude of the current through the 20.0 Q resistor. b) Find the direction of the current through the 15.0 2 resistor. Circle one. Explain your answer below. The current goes toward the lower right of the circuit OR toward the upper left of the circuit. c) Find the voltage drop across the 10.0 2 resistor. 20.0 2 12.0 V 15.0 2 5.00 2 7.00 V 3.00 V 10.0 2
QUESTION 10 The conduction electrons in a cylindrical, current-carrying wire have a drift velocity of 0.35 mm/s. The wire has a radius of 1.0 mm and contains 8.6 x 1028 conduction electrons per m3. What is the current in the wire? (The magnitude of the charge of an electron is 1.602 x 10-19 c.) а. 3.0 А b. 9.0 A Ос. 6.0 А d. 12 A е. 15 А
If 5.0 × 1021 electrons pass through a 50.2 Q resistor in 10 min, what is the potential difference across the resistor? use the charge of the electron to be -1.6 × 10-19 C. Select one: O A. 10.04 O B. 4016.00 OC. 401.60 O D. 16.73 O E. 66.93
5. A typical lightning bolt has an average current of 3×104A lasting 0.2 s. How much charge is delivered to the ground by the lightning bolt? а. 9,000 C b. 7,000 C с. 8,000 C d. 6,000 C
Which of the following expression(s) represents the electrical energy stored by a capacitor? O A. QV/2 O B. CV²/2 O C. Q/2C O D. CV/2 E. Q²/2C
2 What is the SI unit of resistance? A Ω V F In solid metals, which charged particles are free to move throughout the object? Select any/all correct answers. protons neutrons electrons 4 Which factor(s) affect the current in a conductor? Select any/all correct answers. cross-section area density of the charged particles drift speed of the charged partiçles
If 5.0 x 1021 electrons pass through a 71.2 0 resistor in 10 min, what is the potential difference across the resistor? use the charge of the electron to be-1.6 x 1019 C. Select one: A. 23.73 B. 569.60 C. 5696.00 D. 94.93 E. 14.24 Clear my choice
If 3.0 x 10-5 electrons flow through a section of a wire of diameter 2.0 mm in 2.0 s, what is the current in the wire? O 7.5 x 107 A 0.12 mA O 0.24 mA O 7.5 x 1014 A ho

SEE MORE QUESTIONS