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## AP Board Class 7 Science Chapter 7 Electricity Current and Its Effect Textbook Solutions PDF: Download Andhra Pradesh Board STD 7th Science Chapter 7 Electricity Current and Its Effect Book Answers

 AP Board Class 7 Science Chapter 7 Electricity Current and Its Effect Textbook Solutions PDF: Download Andhra Pradesh Board STD 7th Science Chapter 7 Electricity Current and Its Effect Book Answers

## Andhra Pradesh State Board Class 7th Science Chapter 7 Electricity Current and Its Effect Books Solutions

 Board AP Board Materials Textbook Solutions/Guide Format DOC/PDF Class 7th Subject Maths Chapters Science Chapter 7 Electricity Current and Its Effect Provider Hsslive

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## AP Board Class 7th Science Chapter 7 Electricity Current and Its Effect Textbooks Solutions with Answer PDF Download

Find below the list of all AP Board Class 7th Science Chapter 7 Electricity Current and Its Effect Textbook Solutions for PDF’s for you to download and prepare for the upcoming exams:

### 7th Class Science 7th Lesson Electricity – Current and Its Effect Textbook Questions and Answers

Question 1.
Draw the symbols of the following electric components.
a) Cell
b) Battery
c) Switch
d) Electric bulb
a) Symbol for cell: The longer line denotes the positive terminal, and the thicker, small line denotes the negative terminal.

b) Symbol for battery: Two or more cells joined together form a battery.

c) Symbol for switch: Switch is also called key. Switch is open.

d) Symbol for electric bulb: Electric bulb in on position.

Question 2.
Draw an electric circuit diagram consisting of a cell, a bulb and an electric switch.
Electric Circuit diagram:

Question 3.
In a series connection of bulbs, if one bulb fails, why do all other bulbs go OFF?

1. In a series electric circuit, electricity has only one path to flow through.
2. In series connection of bulbs, if one bulb fails, the circuit breaks and current do not flow in the circuit.
3. So other bulbs in the series connection of bulbs do not glow’and they go OFF.

Question 4.
Write the difference between series connection and parallel connection.

 Series Connection Parallel Connection Electricity has only one path to flow. Electricity has more than one path to flow. All the electrical components are connected in this path. Each bulb in the circuit is connected in separate path through which electricity can flow.

Question 5.
What is the advantage of Miniature Circuit Breaker?

1. The advantage miniature circuit breakers have over fuses is that they can reset (manually or automatically) to restore normal operation.
2. Fuses need to be replaced after every single operation.

Question 6.
Fill in the blanks.
a) Longer line in the symbol for a cell represents its ………… terminal.
b) Smaller line in the symbol for a cell represents its ………… terminal.
c) The combination of two or more cells is called a ………… .
d) Safety device used in electric circuit is ………… .
e) The device used to close or open an electric circuit is ………… .
a) positive
b) negative
c) battery
d) fuse
e) switch

Question 7.
Mark T’ if the statement is true and F’ if it is false. Give reasons for choice of answer.
a) In series circuit the electricity has only one path. (T/F)
b) In parallel circuit the electricity has more than one path. (T/F)
c) To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell. (T/F)
d) When the electric current through the fuse exceeds a certain limit the fuse wire
melts and breaks. (T/F)
e) The switch is used to close or open an electric circuit. (T/F)
a) T
b) T
c) F
d) T
e) T

Question 8.

i) Arun buys four bulbs of 15 W, 40 W, 60 W and 100 W respectively. Which one should be use in his room as a night bulb?
A) 15 W
B) 40 W
C) 60 W
D) 100 W
A) 15 W

ii) Device used to close or open an electric circuit is ( C )
A) Electric bulb
B) Battery
C) Switch
D) Fuse
C) Switch

iii) Which one of the following is used for light source? ( D )
A) Cassette player
B) Electric mixer
C) Rice Cooker
D) Table lamp
D) Table lamp

iv) Safety device used in electric circuit is ( D )
A) Electric bulb
B) Battery
C) Switch
D) Fuse
D) Fuse

Question 9.

Question 10.
Draw the symbols of the following electric components.

Question 11.
Draw the circuit diagram for the following series connection.

Question 12.
Match the following.

## Andhra Pradesh Board Class 7th Science Chapter 7 Electricity Current and Its Effect Textbooks for Exam Preparations

Andhra Pradesh Board Class 7th Science Chapter 7 Electricity Current and Its Effect Textbook Solutions can be of great help in your Andhra Pradesh Board Class 7th Science Chapter 7 Electricity Current and Its Effect exam preparation. The AP Board STD 7th Science Chapter 7 Electricity Current and Its Effect Textbooks study material, used with the English medium textbooks, can help you complete the entire Class 7th Science Chapter 7 Electricity Current and Its Effect Books State Board syllabus with maximum efficiency.

## FAQs Regarding Andhra Pradesh Board Class 7th Science Chapter 7 Electricity Current and Its Effect Textbook Solutions

#### Can we get a Andhra Pradesh State Board Book PDF for all Classes?

Yes you can get Andhra Pradesh Board Text Book PDF for all classes using the links provided in the above article.

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