Class 10 Science Electricity Most Important Questions
Most Important Questions for Class 10 Science Electricity. Try first, then reveal the answer. These are exam-oriented practice items, not copied board papers.
Practice questions aligned to NCERT topics used in CBSE classrooms. These are original exam-oriented questions for revision — not official CBSE board papers and not a guarantee of any exam question. Always match the textbook issued by your school and the latest PDFs on ncert.nic.in and cbseacademic.nic.in.
Answers opened: 0
Practice set
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Electric current in the chapter Electricity.
A. Resistance of a conductor R = ρl/A
B. I = Q/t
C. Electric power P = VI = I²R = V²/R
D. Electric current is the rate of flow of charge, I = Q/t, and its SI unit is ampere
Answer
D. Electric current is the rate of flow of charge, I = Q/t, and its SI unit is ampere
Explanation
Electric current is the rate of flow of charge, I = Q/t, and its SI unit is ampere. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Parallel combination in the chapter Electricity.
A. V = IR (Ohm’s law, temperature constant)
B. One kilowatt-hour is the energy used by 1 kW in 1 hour, equal to 3.6 × 10⁶ J
C. In parallel, voltage is the same and 1/Rp = 1/R1 + 1/R2 + …
D. P = VI = I²R = V²/R
Answer
C. In parallel, voltage is the same and 1/Rp = 1/R1 + 1/R2 + …
Explanation
In parallel, voltage is the same and 1/Rp = 1/R1 + 1/R2 + …. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Electricity in the chapter Electricity.
A. Series: R = R1+R2
B. This idea is not part of the NCERT chapter
C. Electric current is the rate of flow of charge, I = Q/t, and its SI unit is ampere
D. I = Q/t
Answer
D. I = Q/t
Explanation
I = Q/t. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Electricity in the chapter Electricity.
A. The textbook says the opposite of this statement
B. P = VI = I²R = V²/R
C. In parallel, voltage is the same and 1/Rp = 1/R1 + 1/R2 + …
D. Ohm’s law: V = IR when physical conditions such as temperature stay constant
Answer
B. P = VI = I²R = V²/R
Explanation
P = VI = I²R = V²/R. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to Series combination in the chapter Electricity.
A. In series, the same current flows and total resistance is the sum of resistances
B. V = IR (Ohm’s law, temperature constant)
C. Resistance of a conductor R = ρl/A
D. One kilowatt-hour is the energy used by 1 kW in 1 hour, equal to 3.6 × 10⁶ J
Answer
A. In series, the same current flows and total resistance is the sum of resistances
Explanation
In series, the same current flows and total resistance is the sum of resistances. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q413 Mark3 marksModerateRevision pick
Explain Ohm’s law in about three points, with one example.
Answer
Ohm’s law: V = IR when physical conditions such as temperature stay constant. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q453 Mark3 marksModerateRevision pick
Explain Electric power in about three points, with one example.
Answer
Electric power P = VI = I²R = V²/R. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q575 Mark5 marksDifficultRevision pick
Write a long answer on Parallel combination. Include definition, explanation and one application.
Answer
Parallel combination — In parallel, voltage is the same and 1/Rp = 1/R1 + 1/R2 + …. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q69Case Based4 marksModerateRevision pick
A student is revising Electricity and notes: “In series, the same current flows and total resistance is the sum of resistances.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Series combination.
(ii) In series, the same current flows and total resistance is the sum of resistances.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q73Case Based4 marksModerateRevision pick
A student is revising Electricity and notes: “Potential difference is work done per unit charge, V = W/Q, SI unit volt.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Potential difference.
(ii) Potential difference is work done per unit charge, V = W/Q, SI unit volt.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q77Competency Based3 marksModerateRevision pick
Competency practice: A classmate can recall the heading Parallel but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Parallel: 1/R = 1/R1+1/R2. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q81Competency Based3 marksDifficultRevision pick
Competency practice: A classmate can recall the heading Resistance but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Resistance of a conductor R = ρl/A. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q93HOTS3 marksDifficultRevision pick
HOTS: If someone ignored the idea “Ohm’s law: V = IR when physical conditions such as temperature stay constant”, what mistake could they make while solving a question from Electricity?
Answer
They would use the wrong term or the reverse relation. Remember: Ohm’s law: V = IR when physical conditions such as temperature stay constant. Always check the NCERT definition before jumping to a formula or a long explanation.
Explanation
HOTS items ask you to predict an error. That is still chapter revision — not a claim that this exact wording will appear in the board exam.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
FAQs
Are these official CBSE board questions?
No. They are original practice questions aligned to NCERT topics used in CBSE classrooms. Official sample papers are published on cbseacademic.nic.in.
Will these questions appear in the board exam?
Nobody can promise a question. Use them for revision of frequently tested concepts and exam-style practice.
Is the chapter list the latest NCERT list?
Yes, the catalog follows current NCERT textbooks used in CBSE schools (including new middle-stage books such as Ganita Prakash and Curiosity). Always match the book issued by your school.
How should I use the 100 questions?
Try the question first, then tap Show answer. Mix MCQs with long answers. Revise formulas and diagrams from the textbook alongside this set.
Where are NCERT solutions?
Open the NCERT-style practice link on this subject or chapter. For word-for-word textbook exercise answers, use the NCERT book itself; we do not copy solution keys from other websites.
What is the suggested URL pattern?
Hub /cbse/, then /cbse/class-10/, then subject and chapter slugs.
Why is this a separate URL?
So students searching for “Most Important Questions” land on a filtered set, while the chapter page remains the full 100-question bank. Same facts, different search intent.
Today's 3-step path
Follow this loop every day: mixed test, current affairs, then today's subject. A new set arrives tomorrow.
