Current and electricity pdf

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Difficulty Beginner Intermediate Advanced. Explore Documents. Electric Current and Its Effects - 2. Uploaded by Gamer AditKills. Did you find this document useful? Is this content inappropriate? Report this Document. Flag for inappropriate content. Download now. Related titles. Carousel Previous Carousel Next. Jump to Page. Search inside document. Home work Q1. Define electric current. Give the SI unit current, charge and time. Q3 Define 1A of current.

A3 1A of current is said to flow when 1coulomb of charge flows for one second. Tungsten is used for making filament of an electric bulb due to the following reason: It has very high melting point of degree celsius The filament in an electric bulb is made using tungsten which would burn quickly when it comes in contact with the oxygen in the air.

Short circuit and overloading Short-Circuit Occurs when live wire comes in contact with neutral wire High amount of current flows through the circuit. In making a battery a positive terminal of one cell is connected to the negative terminal of the next cell b positive terminal of one cell is connected to the positive terminal of the next cell c negative terminal of one cell is connected to the negative terminal of the next cell d none of the above Question 2.

Noli Oteba. Alternating Current can be explained as the current whose value fluctuates incessantly and there is a periodical fluctuation of its direction. For example, an AC dynamo operates on alternating current. Current density can be defined as the electric current flowing through per unit area of the cross-section of a wire. The S. Electrical Resistance. Electrical resistance is a kind of obstacle provided by any conductor in the track of the flow of current.

From scientific experiments, lightning is the most powerful natural current. Then, calculate the amount of charge, current, and power generated by the lightning. So, the solution is. Ans [1]. Ans [2]. Ans [3]. An aluminum wire has a 10 -6 m 2 area of cross-section. This conductor supplies a current of 2 A.

Then, compute the current density and average drift velocity. Ans: Given data,. Vedantu has some amazing features about the current electricity chapter that can surely help you to score better. The current electricity revision notes cover all important topics. You now have a better grasp of the concepts, which would make it easier for you to tackle similar questions in your board exams and competitive exams.

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