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Electric Circuits
A fully charged capacitor connected in series with a resistor stores 64J of energy. How much energy remains when its charge has decreased to one quarter of its original value?
Electric Circuits
how can we get 12V power supply in the lab for any experiment
Electric Circuits
Two charged plates are 2 mm apart. An electron escapes from the negatively charged plate to the positively charged plate in 1.2 * 10^-8 seconds. Find the electric field between the plates.
Electric Circuits
Waves of identical frequency and amplitude are simultaneously launched down two identical wires of equal mass and length, although one wire is tauter than the other. Which wave will arrive at the other end first, or will they arrive at the same time?
Electric Circuits
A -5.00 nC point charge is at the origin, and a second +6.00 nC point charge is on the x-axis at x = 0.500 m. Find the NET electric field at x = -1.0 m?
Electric Circuits
a current is passed to a diode and then to an led bulb
(1)what will happen if the led bulb if it is whirled speedly?
(1)what will happen if the led bulb if it is whirled speedly?
Electric Circuits
how much would you have to raised the temperature of a copper wire ( originally at 20 ° C ) to increased its resistanced by 20 %
Electric Circuits
a certain conductor has a resistance of 10 ohms at 20 degree C and increased to 11.35 ohms at a certain temperature. if temperature coefficient based on 20 degree C is 40 x 10 E -4 / C degree, find the final temperature
Electric Circuits
A tungsten filament is 35 mm long and has a radius of 7.5 m. Calculate the current emitted from this filament at temperatures of 2400 °C and 2500 ºC.
Electric Circuits
A rider of mass 40 kg sits on a sled of mass 10 kg at the top of a hill that is 15 m above level ground. The sled is given a push, providing 1600 J of kinetic energy to the sled and the rider. What is the kinetic energy of the sled and rider at the bottom of the hill?
