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Power
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Power in Series and Parallel circuits
November 8th, 2022
power
electrical-resistance
electric-circuits
homework-and-exercises
Calculating the power of a lightbulb
November 14th, 2020
electric-circuits
electricity
power
Power loss and Joule's law of heating
November 30th, 2020
electricity
electric-circuits
power
Power in Series Combination Of Appliances
May 2nd, 2020
power
electrical-resistance
electric-circuits
Car Motion: Power and Distance: Air Drag
March 16th, 2020
power
distance
drag
homework-and-exercises
Transformers: relation between their current, voltage and resistance
December 15th, 2020
power
electric-current
electromagnetism
voltage
How can you use magnets to rotate a shaft, which in turn powers a generator?
March 10th, 2020
power
electromagnetism
In the equation "Power=Force . Velocity", if velocity is considered constant, how can force exist?
February 10th, 2020
power
work
forces
classical-mechanics
newtonian-mechanics
Question about the relationship between resistive drag, dissipated power, and velocity
December 21st, 2020
energy
power
work
forces
homework-and-exercises
If a propane torch is rated at 200,000 BTUs, what does this translate to in terms of joules/second?
November 28th, 2020
unit-conversion
homework-and-exercises
energy
power
Do resistor-based fan regulators save no power at all?
August 1st, 2022
electrical-engineering
electronics
power
electrical-resistance
Difference between $I^2R$ and $V^2/R$ and $VI$ for measuring power $P$
August 1st, 2022
electrical-resistance
power
electric-circuits
How does a car gain kinetic energy?
August 1st, 2022
free-body-diagram
power
friction
work
newtonian-mechanics
How much power and energy is (actually) in a 230 dB "click" from a whale?
January 7th, 2022
units
waves
pressure
acoustics
power
Intuitively, Why is Power Proportional to $I^2R$
January 20th, 2020
electrical-resistance
electric-circuits
power
Power dissipated by resistors in series versus in parallel for fixed voltage
August 1st, 2022
homework-and-exercises
electrical-resistance
power
electric-circuits
Mathematical Definition of Power
August 1st, 2022
power
differentiation
work
forces
newtonian-mechanics
$\rm Lux$ and $W/m^2$ relationship?
October 23rd, 2021
metrology
visible-light
units
power
Why doesn't increasing resistance increase brightness if $P=I^2\cdot R$
August 1st, 2022
electrical-resistance
electric-circuits
homework-and-exercises
power
Quantum Computing Power Advantages
January 26th, 2020
quantum-computer
power
quantum-information
Why high voltage transmission lines?
September 11th, 2020
electricity
electrical-resistance
voltage
power
electric-current
Voltage and Current in transformers
January 29th, 2020
electric-current
electric-circuits
power
voltage
electrical-resistance
Trying to understand jet engine
August 1st, 2022
propulsion
pressure
power
aircraft
Contradiction in Ohm's Law and relation $P=VI$
December 4th, 2020
electric-circuits
electric-current
voltage
electrical-resistance
power
Why do power lines sag when they are heated up?
August 1st, 2022
heat
power
electricity
Are energy and work the same thing?
August 26th, 2021
power
definition
work
energy
Why is "work done/time taken" correct over "force × velocity" as a definition of power? (A level)
August 13th, 2021
energy
work
power
Why is a 1mW laser dangerous?
June 3rd, 2020
optics
laser
home-experiment
light-emitting-diodes
power
Why does it take so long to make a nuclear bomb?
June 17th, 2020
nuclear-physics
nuclear-engineering
power
why aren't there nuclear powered aircraft?
October 8th, 2020
power
aircraft
nuclear-engineering
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