Tiwari Academy Discussion

Asked: October 20, 2020In: Class 10

Will current flow more easily through a thick wire or a thin wire of the same material, when connected to the same source? Why?

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-209 Questions No-2

Hrithik Bansal

Asked: October 20, 2020In: Class 10

Let the resistance of an electrical component remains constant while the potential difference across the two ends of the component decreases to half of its former value. What change will occur in the current through it?

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-209 Questions No-3

Hrithik Bansal

Asked: October 20, 2020In: Class 10

Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal?

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-209 Questions No-4

Hrithik Bansal

Asked: October 20, 2020In: Class 10

Use the data in Table 12.2 to answer the following –

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-209 Questions No-5 (a) Which among iron and mercury is a better conductor? (b) Which material is the best ...

Sadhika Gujral

Asked: October 20, 2020In: Class 10

Judge the equivalent resistance when the following are connected in parallel

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-216 Questions No-1 Judge the equivalent resistance when the following are connected in parallel- (a) 1 ohm and 106 ohm, (b) ...

Sadhika Gujral

Asked: October 20, 2020In: Class 10

An electric lamp of 100 ohm, a toaster of resistance 50 ohm, and a water filter of resistance 500 ohm are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances, and what is the current through it?

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-216 Questions No-2

Sadhika Gujral

Asked: October 20, 2020In: Class 10

What are the advantages of connecting electrical devices in parallel with the battery instead of connecting them in series?

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-216 Questions No-3

Sadhika Gujral

Asked: October 20, 2020In: Class 10

How can three resistors of resistances 2 ohm, 3 ohm, and 6 ohm be connected to give a total resistance of (a) 4 ohm, (b) 1 ohm?

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-216 Questions No-4 How can three resistors of resistances 2 ohm, 3 ohm, and 6 ohm be connected to ...

Sadhika Gujral

Asked: October 20, 2020In: Class 10

What is (a) the highest, (b) the lowest total resistance that can be secured by combinations of four coils of resistance 4 ohm, 8 ohm, 12 ohm, 24 ohm?

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-216 Questions No-5

Sadhika Gujral

Asked: October 20, 2020In: Class 10

Why does the cord of an electric heater not glow while the heating element does?

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-218 Questions No-1

Will current flow more easily through a thick wire or a thin wire of the same material, when connected to the same source? Why?

Let the resistance of an electrical component remains constant while the potential difference across the two ends of the component decreases to half of its former value. What change will occur in the current through it?

Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal?

Use the data in Table 12.2 to answer the following –

Judge the equivalent resistance when the following are connected in parallel

What are the advantages of connecting electrical devices in parallel with the battery instead of connecting them in series?

How can three resistors of resistances 2 ohm, 3 ohm, and 6 ohm be connected to give a total resistance of (a) 4 ohm, (b) 1 ohm?

What is (a) the highest, (b) the lowest total resistance that can be secured by combinations of four coils of resistance 4 ohm, 8 ohm, 12 ohm, 24 ohm?

Why does the cord of an electric heater not glow while the heating element does?

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