If the length is doubled and the area is halved then drift velocity will be?
Solution and Explanation
Top Questions on Electric Current
- An element \(\triangle l=\triangle x \hat i\) is placed at the origin and carries a large current I = 10A. The magnetic field on the y-axis at a distance of 0.5 m from the elements x of 1 cm length is :
- JEE Main - 2024
- Physics
- Electric Current
- The number of electrons flowing per second in the filament of a 110 W bulb operating at 220 V is: (Given $e = 1.6 \times 10^{-19}$ C)
- JEE Main - 2024
- Physics
- Electric Current
- An electric bulb rated 50 W – 200 V is connected across a 100 V supply. The power dissipation of the bulb is :
- JEE Main - 2024
- Physics
- Electric Current
- In the following circuit, the battery has an emf of \(2 \, \text{V}\) and an internal resistance of \(\frac{2}{3} \, \Omega\). The power consumption in the entire circuit is ______ W.
- JEE Main - 2024
- Physics
- Electric Current
- A thin copper wire carries electric current and is insulated by putting a sleeve, of thickness t, over it. In steady state conditions, the rate of heat loss from the insulated wire per unit length is Q. Which of the following is TRUE?
- GATE PI - 2024
- Industrial Engineering
- Electric Current
Questions Asked in AP EAMCET exam
Six coins tossed simultaneously then find the probability of getting at least 4 heads.
- AP EAMCET - 2023
- Probability
- In the chessboard if the rectangle form is 1296, find the total number of squares formed.
- AP EAMCET - 2023
- Coordinate Geometry
Find the products formed if chlorine reacts with the cold and dilute sodium hydroxide solution.
- AP EAMCET - 2023
- Chemical Reactions
- Find the coefficient of \(\frac{y^3}{x^8}\) in \((x+y)^{-5}\) ?
- AP EAMCET - 2023
- Binomial theorem
- Which compound is gem-dihalide?
- AP EAMCET - 2023
- Organic Chemistry- Some Basic Principles and Techniques
Concepts Used:
Electric Current
Defining Electric Current
It is the rate of flow of electrons in a conductor. SI Unit - Ampere (A).
Electrons are negatively charged particles hence when they move a number of charges moves.
Note:- The ability of a particular substance to conduct electricity depends on the number of electrons that are able to move . Some of the materials allow current to flow better than others.
What is an Electromotive Force?
If a force acts on electrons to make them move in a particular direction, then up to some extent random motion of the electrons will be eliminated. An overall movement in one direction. The force which acts on the electrons to move them in a certain direction is known as electromotive force and its quantity is known as voltage and is measured in V.
SUBSCRIBE TO OUR NEWS LETTER
