## Forum Replies Created

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- May 8, 2021 at 5:22 pm in reply to: which of the following would double the amount of current flowing through a piece of metal wire #5748MichalKeymaster
The answer is (B)

as we know the current i=v/r

by doubling the voltage, you can double the current through the wire.

Use the ohm law calculator to find out https://electric-shocks.com/state-and-explain-ohms-law/

MichalKeymasterFor 50 amps, you’ll need a wire gauge of 6. Fifty amp breakers are most often used to power many different appliances. However, a kitchen oven can alone require 50 amps. Many electric dryers also require a 50 amp breaker.

You can calculate gauge with the wire size calculator https://electric-shocks.com/wire-size-calculator/

MichalKeymasterThe assignment of B to a physical entity is done with the Boltzmann factor, where E is replaced by the voltage B: B = qV/kT, where k = 8.61758 x 105 eV/K. Then, kT/q is called the thermal voltage Vth and is 25.8 mV at 300K

MichalKeymasterYou can solve the RL circuit differential equation by analytical methods as well as numerical methods. There are also online tools for solving the differential equation like: https://onsolver.com/diff-equation.php

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