Tag: current

Electricity and Magnetism – Electric Current

A wires length and thickness affect resistance. Longer wires produce more resistance than shorter wires. As the electrical charges move through the length of the wire, they slow down as they collide with the walls of the wire. Thinner wires are more resistant than thicker wires. Thin wires have less area for the charges to […]

AC current impedance – Alternating Voltage for inductors, capacitors

If we apply an AC voltage, the frequency of the voltage affects the amount of current that will flow. Inductors, capacitors, and resistors all react differently to AC voltage. But, in all three cases, the frequency of the AC current will be exactly equal to the frequency of the voltage. Let us call the voltage […]

Electric Current & Electric Circuits (JEL01B)

dear students, now we’ll start the topic of current electricity. and in this topic, the very 1st thing we’re going to discuss is about electric current in electric circuits. electric current is quite a familiar term for all of us, that in our house, without electric current, there won’t be any life, because the light, […]

1. Physics Lecture of 11th Class | Current Electricity | Electric Current | by Ashish Arora (GA)

dear students lets start with the topic of electric current. and, in your early classes you might have studied about the basic definition of current in which, we write that. rate of flow of charge. through. any cross section. of a conductor. in which current is flowing obviously we are talking about. is called. electric […]

Graphite and Its Awesome Properties

Hi. Graphite. I like graphite! It’s a specific arrangement of carbon atoms that is highly conductive. Which also allows us to draw. Graphite has many applications. From pencils, to DC motor brushes, to some traces on electronics, to battery carbon rods, and more. This is a replacement lead of a mechanical pencil. It’s not made […]

5. Physics | Current Electricity | Analyzing Electrical Circuit Using KCL and KVL-3 | (GA)

in this illustration, we analyze this electric circuit using kirchhoff’s current law and voltage law. here, in the circuit shown in figure we are required to find, the current in this resistance, r. again here i’ll solve the circuit by, using kirchhoff’s current law, for which, i can, distribute the potential first. say if i […]

12. Class 12 Physics | Current Electricity | Circuit Symbol of a Resistance & Equations of Ohm’s Law

let us discuss about circuit symbol of resistance and equation of ohms law. i hope all of you aware about that in. electrical circuit, resistance is represented by a zigzag line. say if there are 2 terminals ay and b. across which resistance r is connected. and say if, at terminal ay potential is v-a […]

Heating Effect of Electric Current (GA_JEL04A)

now we’ll discuss an important phenomenon related to electric current, that is heating effect of electric current. we can also write over here, that when, electric current, flows, through a metal wire, it gets heated up. and as we’ve discussed that, current is the flow of electric charges, so when charge flow inside a metal […]

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