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Physics Sir

Asked: December 30, 2020In: Class 10 Science

State ohm’s law. Derive relation between I, V and R. Draw the graph between V and I.

NCERT Solutions for Class 10 Science Chapter 12 Important Board Questions Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Questions: Questions No: 2

Physics Sir

Asked: December 29, 2020In: Class 10 Science

(a) List the factors on which the resistance of a conductor in the shape of a wire depends. (b) Why are metals good conductors of electricity whereas glass is a bad conductor of electricity? Give reason. (c) Why are alloys commonly used in electrical heating devices? Give reason.

NCERT Solutions for Class 10 Science Chapter 12 Important Board Questions Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Questions: Questions No: 9

Physics Sir

Asked: December 29, 2020In: Class 10 Science

(a) Write Joule’s law of heating. (b) Two lamps, one rated 100 W; 220 V, and the other 60 W; 220 V, are connected in parallel to electric mains supply. Find the current drawn by two bulbs from the line, if the supply voltage is 220 V.

NCERT Solutions for Class 10 Science Chapter 12 Important Board Questions Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Questions: Questions No: 8

Physics Sir

Asked: December 29, 2020In: Class 10 Science

Which is the better way to connect lights and other appliances in domestic wiring and why?

NCERT Solutions for Class 10 Science Chapter 12 Important Board Questions Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Questions: Questions No: 6

Physics Sir

Asked: December 29, 2020In: Class 10 Science

What would be new resistance if length of conductor is doubled and thickness is halved?

NCERT Solutions for Class 10 Science Chapter 12 Important Board Questions Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Questions: Questions No: 4

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Physics Sir

State ohm’s law. Derive relation between I, V and R. Draw the graph between V and I.

(a) List the factors on which the resistance of a conductor in the shape of a wire depends. (b) Why are metals good conductors of electricity whereas glass is a bad conductor of electricity? Give reason. (c) Why are alloys commonly used in electrical heating devices? Give reason.

(a) Write Joule’s law of heating. (b) Two lamps, one rated 100 W; 220 V, and the other 60 W; 220 V, are connected in parallel to electric mains supply. Find the current drawn by two bulbs from the line, if the supply voltage is 220 V.

Which is the better way to connect lights and other appliances in domestic wiring and why?

What would be new resistance if length of conductor is doubled and thickness is halved?

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