Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 35, Problem 3PLA
To determine
The equation that relates the magnitude of the
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A charge of Q = 4.2 C passes through a wire every t = 5.5 s.
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A) Input an expression for the current, I, in the wire.
B)What is the current amperes?
C)What is the current, in milliamps?
Problem 1: A charge of Q = 1.2 C passes through a wire every t = 1.5 s.
Part (a) Input an expression for the current, I, in the wire.
I = _____
Part (b) What is the current in amperes?
I = ______
Part (c) What is the current, in milliamps?
I = ______
In a given fluid, positive ions, each with three excess protons, move towards right at a steady rate of 4.5 x 1019 ions per minute and negative ions, each with two excess electron, move towards left at a steady rate of 2.5 x 1020 ions per minute. Determine the current directed to the rightAnswer should be I=1.69 A. Please provide solution and an illsutration
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Physics Laboratory Manual
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- If R1 = 2Ω, R2 = 4Ω, R3 = 6Ω, determine the electric current flows in the circuit below.arrow_forwardIn a given fluid, positive ions, each with 2 excess protons, move to the right at a steady rate of 1.0 x 1019 ions per minute and negative ions, each with 4 excess electrons, move to the left at a rate of 3,6 × 1019 unit of charge to be 1.6x 10-19 C. Determine the current (in amperes) to the right. ions per minute. Determine the current directed to the right. Use the fundamentalarrow_forwardIn a given fluid, positive ions, each with 2 excess protons, move to the right at a steady rate of 1.0 × 1019 ions per minute and negative ions, each with 4 excess electrons, move to the left at a rate of 3.0 × 1019 ions per minute. Determine the current directed to the right. Use the fundamental unit of charge to be C. Determine the current (in amperes) to the right.arrow_forward
- R = Two identical resistors of Ro= 41 Q are connected head-to-tail. www Express the resistance Ro of one of the resistors in terms of the resistivity p, length L, and the cross section area A. Calculate the total resistance R of the two resistors in ohms. R Rarrow_forwardThe figure below represents a section of a circular conductor of nonuniform diameter carrying a current of I = The radius of cross-section A, is r, = 0.220 cm. 4.10A. %3Darrow_forwardRz RI Find the current through R, = 42 kQ and R, = 48 kN from the figure given. Here E, = 8 V and E, = 13 V Current through R Give your answer up to at least three significance digits. Current through R2 Give your answer up to at least three significance digits.arrow_forward
- A circuit is connected to a potential difference, V = 23.6 volts, at a power P = 9.3 watts. What is the current,I, flowing in the circuit?arrow_forwardThe current in a wire varies with time t according to the relation: I(t) = 3+3t². where the current I in Ampere and time t in seconds. How many coulombs of charge pass section of the wire in the time interval between t = 0 andt= 3s? *arrow_forwardA student woants to identify the Resistivity of a conducting wire of unknown material. Resistivity is a property of a material that quantifies how strongly it conducts electric current, and it is formulated as, of p= R4 where R is the Resistance (ohms), A cross-sectional area (meters-squared) and I is the length (meters) of the wire. The student runs an experiment on a cylindrical wire of a length l of 2 centimeters and the cross- sectional area A of the wire is 6.1 centimeters-squared. The measurements of the Current is as below Dataset Voltage (Applied, Volts) Current (Measured, Amperes)arrow_forward
- In a given fluid, positive ions, each with 1 excess protons, move to the right at a steady rate of 1.9 × 1019 ions per minute and negative ions, each with 4 excess electrons, move to the left at a rate of 4.8 × 1019 ions per minute. Determine the current directed to the right. Use the fundamental unit of charge to be C. Determine the current (in amperes) to the right. Express Answer into FOUR decimal places.arrow_forwardConsider the following. (a) A rectangular block has the dimensions ℓ ✕ w ✕ h. When a battery with a voltage V is connected across the end faces as shown in the left figure above, a current I1 flows through the circuit. If the same battery is connected across the top and bottom faces of the block as shown in the right figure, what is the current I2 that flows through the circuit? Give your answer in terms of I1. (Use the following as necessary: ℓ, w, h, I1) I2 = ? (b) Suppose ℓ = 4.20 cm, w = 2.2 cm, and h = 1.80 cm; the battery voltage is 1.5 V and I1 = 2.50 A, determine the value of I2. (A)arrow_forwardThe total amount of charge in coulombs that has entered a wire at time tis given by the expression Q = 4t− t2, where t is in seconds and t greater than or equal to 0.a) find an expression for the current in the wire at time t.b) graph I vs t for the interval 0 less than or equal to ? less than or equal to 4 (s).arrow_forward
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