Shaurya

Jhalak

Asked: November 22, 2020In: Class 8 Science

Explain why the sliding friction is less than the static friction.

NCERT Solutions for Class 8 Science Chapter 12 Important NCERT Questions 8th Chapter 12 Friction NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 8

Meghana

Asked: November 22, 2020In: Class 8 Science

The process that you saw in Activity 14.7 is used for purification of copper. A thin plate of pure copper and a thick rod of impure copper are used as electrodes. Copper from impure rod is sought to be transferred to the thin copper plate. Which electrode should be attached to the positive terminal of battery and why?

NCERT Solutions for Class 8 Science Chapter 14 Important NCERT Questions 8th Chapter 14 Chemical Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 12

Meghana

Asked: November 22, 2020In: Class 8 Science

Prepare a list of objects around you that are electroplated.

NCERT Solutions for Class 8 Science Chapter 14 Important NCERT Questions 8th Chapter 14 Chemical Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 11

Meghana

Asked: November 22, 2020In: Class 8 Science

Paheli had heard that rainwater is as good as distilled water. So she collected some rainwater in a clean glass tumbler and tested it using a tester. To her surprise she found that the compass needle showed deflection. What could be the reasons?

NCERT Solutions for Class 8 Science Chapter 14 Important NCERT Questions 8th Chapter 14 Chemical Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 10

Meghana

Asked: November 22, 2020In: Class 8 Science

Is it safe for the electrician to carry out electrical repairs outdoors during heavy downpour? Explain.

NCERT Solutions for Class 8 Science Chapter 14 Important NCERT Questions 8th Chapter 14 Chemical Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 9

Shaurya

Explain why the sliding friction is less than the static friction.

Prepare a list of objects around you that are electroplated.

Paheli had heard that rainwater is as good as distilled water. So she collected some rainwater in a clean glass tumbler and tested it using a tester. To her surprise she found that the compass needle showed deflection. What could be the reasons?

Is it safe for the electrician to carry out electrical repairs outdoors during heavy downpour? Explain.

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