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Current Electricity — Flashcards

ICSE · Class 10 · Physics

44 flashcards for Current Electricity (ICSE Class 10 Physics) to test yourself on key terms and facts. Sample: "State the definition of electric current"

43 questions44 flashcards13 formulas & key relations5 concepts

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A diagram illustrating the internal mechanism of current flow in a conductor, showing the movement of free electrons from lower to higher potential (negative to positive terminal) and the conventional
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44 Flashcards·
Electric currentElectric current calculationCurrent and electronsFlow of currentDirection of current
Card 1Electric current

State the definition of electric current and write its formula.

Answer

Electric current is the rate of flow of charge. Formula: i=Q/t Here, i = current, Q = charge, t = time. Unit: ampere (A) 1 ampere means 1 coulomb of charge flows in 1 second.

Card 2Electric current calculation

A charge of 10 C flows through a conductor in 5 s. Find the current.

Answer

Given: Q = 10 C, t = 5 s Formula: i=Q/t Step 1: i = 10 C / 5 s Step 2: i = 2 C/s Answer: i = 2 A…

Card 3Electric current

What is the current when 1 coulomb of charge passes in 1 second?

Answer

Formula: i=Q/t Given: Q = 1 C, t = 1 s So, i = 1 C / 1 s = 1 A Answer: 1 ampere.

Card 4Current and electrons

State the relation between current and number of electrons.

Answer

If n electrons flow in time t, then: Q=ne and i=ne/t Here, e is the charge of one electron. This relation connects microscopic charge carriers with electric current.

Card 5Current and electrons

How many electrons pass when 1 A current flows for 1 s?

Answer

Given: i = 1 A, t = 1 s Formula: i=ne/t So, Q = it = 1 A × 1 s = 1 C For 1 A and 1 s, number of electrons n = 6.25×10^18 Answer: 6.25×10^18 electrons…

Card 6Flow of current

Why does electric current flow more easily in metals?

Answer

Metals have many free electrons. These electrons move through the conductor and produce current. Because of the large number of free electrons, metals are good conductors of electricity.

Card 7Direction of current

State the direction of conventional current and electron flow.

Answer

Conventional current flows from higher potential to lower potential. Electron flow is opposite: from lower potential to higher potential, that is, from the negative terminal to the positive terminal t…

Card 8Direction of current

A student says current and electron flow are in the same direction. Is this correct?

Answer

No. Conventional current is opposite to electron flow. Electrons move from the negative terminal to the positive terminal through the resistor, while conventional current is taken from higher potentia…

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Frequently Asked Questions

What are the important topics in Current Electricity for ICSE Class 10 Physics?
Key topics in Current Electricity include Electric Current, Charge Flow, and Potential, Resistance, Ohm's Law, and V-I Graph, Resistivity, Conductivity, and Choice of Materials, EMF, Terminal Voltage, Internal Resistance, and Cells. Study these first, then practise questions on each for the ICSE Class 10 board exam.
How many flashcards are available for Current Electricity?
There are 44 flashcards for Current Electricity covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Current Electricity for the ICSE Class 10 board exam?
Learn the core ideas first, then work through the 43 practice questions on Current Electricity. Revise definitions regularly and use flashcards for quick recall before the exam.

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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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