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batteries MCQ Questions for Class 9

batteries se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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2 questions tagged with batteries.

Question 1/2 Easy Science Exploration: Entering the World of Secondary Science Variables in an experiment Class 9 Level 12

बैटरी वाले प्रयोग में बल्ब की चमक कौन सा चर है?

In the battery experiment what type of variable is bulb brightness?

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Correct Answer

C. आश्रित चरDependent variable

Step 1

Concept

Bulb brightness is measured as the result of changing battery number. In exams choose the outcome variable.

Step 2

Why this answer is correct

The correct answer is C. आश्रित चर / Dependent variable. Bulb brightness is measured as the result of changing battery number. In exams choose the outcome variable.

Step 3

Exam Tip

बल्ब की चमक बैटरियों की संख्या के परिणाम के रूप में मापी जाती है। परीक्षा में परिणाम वाले चर को चुनें।

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Question 2/2 Easy Science Exploration: Entering the World of Secondary Science Variables in an experiment Class 9 Level 12

एक छात्र अलग संख्या में बैटरियाँ जोड़कर बल्ब की चमक मापता है। बैटरियों की संख्या क्या है?

A student connects different numbers of batteries and measures bulb brightness. What is the number of batteries?

Explanation opens after your attempt
Correct Answer

B. स्वतंत्र चरIndependent variable

Step 1

Concept

The number of batteries is deliberately changed so it is the independent variable. In exams identify the changed electrical factor.

Step 2

Why this answer is correct

The correct answer is B. स्वतंत्र चर / Independent variable. The number of batteries is deliberately changed so it is the independent variable. In exams identify the changed electrical factor.

Step 3

Exam Tip

बैटरियों की संख्या जानबूझकर बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में बदले गए विद्युत कारक को पहचानें।

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