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Important Questions

Electricity

ICSE · Class 8 · Physics

Most important questions from Electricity for ICSE Class 8 Physics board exam 2026. MCQs, short answer, and long answer questions with marks.

69 questions40 flashcards5 concepts

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69 Questions·
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Sample Questions

1multiple choice
3 marks

A heater works at 220 V and draws 6.8 A. What is its power?

Show answer

1496 W

Use P = VI. So, P = 220 × 6.8 = 1496 W. This is about 1.5 kW.

2multiple choice
3 marks

A 100 W bulb works at 220 V. What is the safe current through it?

Show answer

0.45 A

Use I = Power / Voltage. So, I = 100 / 220 = 0.4545... A, which is about 0.45 A.

3multiple choice
3 marks

An electric oven of power 3 kW works for 2 hours per day. What electrical energy is consumed in 30 days?

Show answer

180 kWh

Daily energy = 3 × 2 = 6 kWh. In 30 days, energy = 6 × 30 = 180 kWh.

4multiple choice
3 marks

A 12 V battery sends a current of 2 A through a wire for 30 minutes. What electrical energy is supplied?

Show answer

43,200 J

Convert 30 minutes to 1800 s. Use W = VIt. So, W = 12 × 2 × 1800 = 43,200 J.

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Frequently Asked Questions

What are the important topics in Electricity for ICSE Class 8 Physics?
Electricity covers several key topics that are frequently asked in ICSE Class 8 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Electricity — ICSE Class 8 Physics?
Understand the core concepts first, then work through the 69 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Electricity?
There are 69 practice questions available for Electricity. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

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

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