II-Problem SolvingA. Current1. Calculate the current produced by a charge of 4.15 x107 C that flows for 10 s.2. Identify how many electrons flow through a lightbulb for each second if the current through the bulb is0.75A.3. A steady current of 0.75A flows through a conductor. Determine the number of charges that passesthrough the wire in 3 minutes.4. Determine the number of electrons that pass per second through a section of wire carrying a current of 0.8 A.B. Resistance1. Solve for the resistance of a conductor given a resistivity of 15.3 Q.m, length of 6 m, and crosssectional area of 2.85 102 m².2. A.copper rod is 3m long and 4 mm in diameter. Compute its resistance if the resistivity of the material is1.76 x10% Q.m.

Comment: Since we only answer up to 3 sub parts, we'll answer the first 3. Please resubmit the…

II- Problem Solving A. Current 1. Calculate the current produced by a charge of 4.15 x107 C that flows for 10 s. 2. Identify how many electrons flow through a lightbulb for each second if the current through the bulb is 0.75A. 3. A steady current of 0.75A flows through a conductor. Determine the number of charges that passes through the wire in 3 minutes.

II- Problem Solving A. Current 1. Calculate the current produced by a charge of 4.15 x107 C that flows for 10 s. 2. Identify how many electrons flow through a lightbulb for each second if the current through the bulb is 0.75A. 3. A steady current of 0.75A flows through a conductor. Determine the number of charges that passes through the wire in 3 minutes.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 70PE: Unreasonable Results (a) What current is needed to transmit 1.00 102 MW of power at 10.0kV? (b)...

See similar textbooks

Similar questions

A 12-V car battery is used to power a 20.00-W, 12.00-V lamp during the physics club camping trip/star party. The cable to the lamp is 2.00 meters long, 14-gauge copper wire with a charge density of n=9.501028m3 . (a) What is the current draw by the lamp? (b) How long would it take an electron to get from the battery to the lamp?
Unreasonable Results (a) What current is needed to transmit 1.00 102 MW of power at 10.0kV? (b) Find the resistance of 1.00 km of wire that would cause a 0.0100% power loss. (c) What is the diameter of a 1.00-km-long copper wire having this resistance? (d) What is unreasonable about these results? (e) Which assumptions are unreasonable, or which premises are inconsistent?
Taking R = 1.00 k and = 250 V in Figure P27.19, determine the direction and magnitude of the current in the horizontal wire between a and e. Figure P27.19
A particle accelerator produces a beam with a radius of 1.25 mm with a current of 2.00 mA. Each proton has a kinetic energy of 10.00 MeV. (a) What is the velocity of the protons? (b) What is the number (n) of protons per unit volume? (b) How many electrons pass a cross sectional area each second?
1. Silver is composed of 5.8 x 1028 free electrons per cubic meter. If a silver wire with a diameter of 1.8 mm can allow charges of 360 C to flow in 1 hour,a. What is the current in the conducting wire?b. What is the magnitude of the drift velocity of the electrons in the conducting wire?
Q1. How many electrons per second are necessary to produce 1.0 nA of current? (e = 1.60 × 10-19 C) Q3. A +7.5 nC point charge is 5.0 cm from a -9.4 µC point charge in your laboratory in California. How much work would you have to do if you left the +7.5-nC charge in the lab but took the -9.4 µC charge to New York City? If you then released the +7.5, how much KE would it have once it returned to Cali? 3 parallel + 1 in series – Find Req Q5. How would you reduce Req of a circuit by adding a resistor – numerical piece to follow.
5. A certain Tesla car has a 400 V battery which stores 2.9x108 J. The car can travel 402 km (250 miles) at 105 km/hr (65 mph = 29 m/s) on just the battery before it is depleted. The steps below will let you determine the current delivered by the battery. A. How long does it take to deplete the battery? B. What is the power delivered by the battery (P=E/dt)? C. Power in a circuit is related to the potential difference, current and resistance in the circuit. What is the current delivered by the battery? D. What is the resistance of the circuit?
1. Consider a cylindrical wire that has conduction electron density 6.0 × 1028 1 ,3 and radius 0.5 mm. An electric field with strength m- 7.5 × 10-4 creates a current of 4.8 x 10! electrons per second. a) What is the average drift speed for an electron? (include units) b) What is the average time in between electron collisions? fs (express your answer in femtoseconds)
(a) Answer all statement as shown in Table Q1(a) Table Q1(a) No Statement True or False i. Electricity can be defined as the movement of electrons through a material while current can be defined as the rate of flow of electrons through a conductor. ii. Kirchhoff’s current law (KCL) stated that the algebraic sum of current around a circuit is equal zero. iii. The motion of an electric current creates electric charges iv. In an ideal parallel circuit, the circuit elements will have the same voltage across them. v. Two resistors a and b of the same value are connected in parallel; the equivalent resistance of the resistors is a/2.
sics2 - Mr.Khalil .. A total of 2.0 x 1013 electrons pass a given point in a wire in 15 s. What is the current in the wire? ( ge = 1.6x10-19 C) Select one: O a. 1.3 µA O b. 1.3 A O C. 3.2 UA O d.0.21 µA Clear my choice Next page page physics
3. Four capacitors have capacitances of 2F, 1F, 1.5F and 2.5F. (a) If they are connected in parallel and charged to a potential difference of 10v, find the charge in each capacitor. (b) If the capacitors are connected in series, with the same potential difference across them, what is the charge in each capacitor?
3. If the current flowing in a certain conductor is 40 mA. a. find the total charge in coulomb and b. find the total number of electrons that passes through the conductor in 1.8 s. (e=1.602x10- 19Clelectrons)