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Anannya responded to the question: Why do electrical appliances with metallic bodies are connected to the mains through a three pin plug, whereas an electric bulb can be connected with a two pin plug? She wrote: Three pin connections reduce heating of connecting wires. (i) Is her answer correct or incorrect? Justify. (ii) What is the function of a fuse in a domestic circuit?

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Anannya responded to the question: Why do electrical appliances with metallic bodies are connected to the mains through a three pin plug, whereas an electric bulb can be connected with a two pin plug? She wrote: Three pin connections reduce ...

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CBSE Sample Paper 2 years 1 Answer 1051 views Tech Professional 18

Assertion: Danger signals are made of red colour. Reason: Velocity of red light in air is maximum, so signals are visible even in dark.

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(a) Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion. (b) The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion. (c) Assertion ...

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Class 10 science 3 years 1 Answer 852 views Enlightened 3

The sample of soil from a particular place was tested for its pH value. It came out to be 5. Which one of the following should be added to the soil to make it suitable for the plant growth?

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i. Calcium chloride ii. Calcium Hydroxide iii. Calcium oxide Choose the correct option: a. Both (i) and (ii) b. Both (ii) and (iii) c. Only (i) d. Only (iii)

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Class 10 science 3 years 1 Answer 70 views Enlightened 2

. Assertion: Chemical reaction changes the physical and chemical state of a substance. Reason: When electric current is passed through water (liquid), it decomposes to produce hydrogen and oxygen gases.

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(a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion. · (b) Both Assertion and Reason are true but Reason is not the correct -explanation of Assertion. (c) Assertion is true but Reason is false.(d) ...

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Class 10 science 3 years 1 Answer 2294 views Enlightened 1

Assertion: 34.12345 is a terminating decimal fraction Reason: Denominator of 34.12345, when expressed in the form q p , q ! 0, is of the form 2 5 m n , where m and n are nonnegative integers.

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Class 10 Maths 3 years 1 Answer 405 views Enlightened 1

(i) State the law that explains the heating effect of current with respect to the measurable properties in an electrical circuit. (ii) List the factors on which the resistance of a conductor depends.

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(i) State the law that explains the heating effect of current with respect to the measurable properties in an electrical circuit. (ii) List the factors on which the resistance of a conductor depends.

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CBSE Sample Paper 2 years 1 Answer 1616 views Tech Professional 1

Assertion: Highly reactive metals are obtained by electrolytic reduction of their molten ore. Reason: Highly reactive metals can be extracted by chemical reduction.

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Class 10 science 3 years 1 Answer 2111 views Enlightened 1

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