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Physics Solutions Library

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5,149 solutions

Resistors and Ohm's Law

Q. Consider two copper wires with the same cross-sectional area. Wire A is twice as long as wire B. How do the resistivities and resistances of the tw...

Solved • Jul 30, 2020

Power in Circuits

Q. A constant voltage is applied across a circuit. If the resistance in the circuit is doubled, what is the effect on the power dissipated by the circ...

Solved • Jul 30, 2020

Intro to Current

Q. Which of the following statements are true? (More than one answer may be correct - select all that are true).Select one or more:a. In a circuit, cu...

Solved • Jul 30, 2020

Resistors and Ohm's Law

Q. Which of the following statements are true? More than one answer may be correct - select all correct answers.Select one or more:a. A material that ...

Solved • Jul 30, 2020

Resistors and Ohm's Law

Q. Which of the following will increase the resistance of a wire? (More than one answer may be correct - select all correct answers).Select one or mor...

Solved • Jul 30, 2020

Intro to Current

Q. A metal tube is filled with a gas of ions (a plasma). Inside the gas, 5 coulombs of positive charges is moving to the right each second and 3 coulo...

Solved • Jul 30, 2020

Nuclear Physics

Q. A hydrogen atom has a diameter of approximately 1.06 ✕ 10-10 m, as defined by the diameter of the spherical electron cloud around the nucleus. The ...

Solved • Jul 30, 2020