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# Physics paper Essay Example

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## Physics paper

When electrons are moving against the same direction it causes friction, this is manifested in form of heat.at the same time the readings of ammeter changes. The concentration of heat in filament will force the bulb to glow.In the cases of short circuit, the bulb will stop glowing because there is no complete flow of electrons. There will be any resistance because the circuit is incomplete. When we use batteries in the above set up, the battery will run short of the charge because the electrons faces a lot of resistance hence discharging of electrons will be faster.in such cases the resistance will be the key factor which it discharges the battery. When bulb is removed and replaced with a variable resistor, when using a series resistance in the experiment it will result in less current and when the resistance is increased the current will reduce drastically (Jeong). And when there is increase in the number of filament lamps in the circuit there will be less current, bulbs will always resist the current in regardless of their voltage. Changing of voltage in the circuit too have an effect on the bulbs and ammeter, when there is too much current and less resistance the bulbs will blow up because the filament will not be a position to resist the current.in the circuit, when the ammeter for instance reading 0.1A,the bulb will glow. When the current is increased to 0.2A the bulb will glow brighter, also if the current is further increased to 0.3A the bulb will blow up.We can assume the amount water flowing from the tank through a pipe as current. When the pressure is increased the higher the flow of water, the water flowing through the pipe over certain period can be measured by volume on a given time. With electricity, we measure amount of charges flowing through a conductor over a given period. Current is measured in amperes, and it’s denoted by letter ‘I’. When two tanks with the same volume of water is fitted with different pipes, one with narrow and the other with bigger. When water is released and the pressure is measured from two pipes, the flow rate of flowing water from the narrower pipe is less when compared with the flow of water from narrower pipe. If the uniform pressure is required, the water level in the tank with narrower pipe is increased.in electrical terms, the current flowing through the thinner wire is less when compared with thick wire. If the same flow of

Bibliography

Jeong, Se-Young. "current ." current and applied physics (2013).

S. Knight, E Buehler & I. Camlibel. "current- control negative resistance in CdSnP2." journal of applied physics v43 (2003).

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• Pages: 4 (1000 words)
• Document Type: Essay
• Subject: Physics
• Level: Masters
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