electric current and its effects

Eakshaa

Asked: November 24, 2020In: Class 7 Science

Zubeda made an electric circuit using a cell holder, a switch and a bulb. When she put the switch in the ‘ON’ position, the bulb did not glow. Help Zubeda in identifying the possible defects in the circuit.

NCERT Solutions for Class 7 Science Chapter 14 Important NCERT Questions 7th Chapter 14 Electric Current and its Effects NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 12

Eakshaa

Asked: November 24, 2020In: Class 7 Science

An electrician is carrying out some repairs in your house. He wants to replace a fuse by a piece of wire. Would you agree? Give reasons for your response.

NCERT Solutions for Class 7 Science Chapter 14 Important NCERT Questions 7th Chapter 14 Electric Current and its Effects NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 11

Eakshaa

Asked: November 24, 2020In: Class 7 Science

Do you think an electromagnet can be used for separating plastic bags from a garbage heap? Explain.

NCERT Solutions for Class 7 Science Chapter 14 Important NCERT Questions 7th Chapter 14 Electric Current and its Effects NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 10

Eakshaa

Asked: November 24, 2020In: Class 7 Science

Fill in the blanks: The safety device based on the heating effect of electric current is called a ____________.

NCERT Solutions for Class 7 Science Chapter 14 Important NCERT Questions 7th Chapter 14 Electric Current and its Effects NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 8 Part: d

Eakshaa

Asked: November 24, 2020In: Class 7 Science

Fill in the blanks: When current is switched ‘on’ in a room heater, it ____________.

NCERT Solutions for Class 7 Science Chapter 14 Important NCERT Questions 7th Chapter 14 Electric Current and its Effects NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 8 Part: c

Zubeda made an electric circuit using a cell holder, a switch and a bulb. When she put the switch in the ‘ON’ position, the bulb did not glow. Help Zubeda in identifying the possible defects in the circuit.

An electrician is carrying out some repairs in your house. He wants to replace a fuse by a piece of wire. Would you agree? Give reasons for your response.

Do you think an electromagnet can be used for separating plastic bags from a garbage heap? Explain.

Fill in the blanks: The safety device based on the heating effect of electric current is called a ____________.

Fill in the blanks: When current is switched ‘on’ in a room heater, it ____________.

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