100% FREE ACCESS9th Standard Syllabus & Materials
9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -கற்கண்டு (இலக்கணம்) - தொடர் இலக்கணம், ஆகுபெயர் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -விரிவானம் (துணைப்பாடம்) - தாய்மைக்கு வறட்சி இல்லை! Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -கவிதை பேழை (செய்யுள்) - மார்கழி பெருவிழா Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர்-இலக்கணம் - பகுபத உறுப்பிலக்கணம் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர் - இலக்கணம்-எழுத்து -அளபெடை Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர்-துணைப்பாடம் - ஆறாம்திணை Important Questions And Answers Study Material - QB365 Set A
Published on: 09/09/2019
Electric Charge and Electric Current
Download Tamil Nadu 9th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Define electric field.
2.
What are electric lines of force?
3.
How are the home appliances connected in general, in series or parallel. Give reasons.
4.
Draw a circuit with a 2\(\Omega\) and 5\(\Omega\) resistors in series. Connect another 3\(\Omega\) resistor parallel to the above connection.
5.
In India the frequency of alternating current is
220 Hz
50 Hz
5 Hz
100 Hz
6.
Resistance of a wire depends on
temperature
geometry
nature of material
all the above
7.
Electroplating is an example for
heating effect
chemical effect
flowing effect
magnetic effect
8.
In current electricity, a positive charge refers to,
presence of electron
presence of proton
absence of electron
absence of proton
9.
Electric fuse works on Joule heating principle
10.
Current can produce magnetic field.
11.
The anode in electrolyte is negative
12.
Trip switch is a______________safety device
13.
The domestic electricity in India is an ac with a frequency of___________Hz
14.
Electrons move from__________ potential to __________ potential
1.
Electric field is the region around a charged body within which its influence can be experienced (i.e) within which it can attract or repel another charged body.
2.
The lines representing the electric field are called electric lines of force
3.
In a household electric circuit, different home appliances are connected in parallel to one another due to the following reasons:
(i) The appliances can be operated independently. If one appliance is switched off, others remain unaffected.
(ii) Each appliance gets the same constant voltage.
(iii) In parallel connection of electrical appliances, the overall resistance of the circuit is reduced due to which the current from the power supply is high.
4.
5.
(b)
50 Hz
6.
(d)
all the above
7.
(b)
chemical effect
8.
(b)
presence of proton
9.
(a)
10.
(a)
11.
(b)
12.
( )
electro-mechanical
13.
( )
50
14.
( )
higher, lower
9th Standard Syllabus & Materials
9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - மணிமேகலை Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - ஏறு தழுவுதல் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர் - தண்ணீர் Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 9th Standard Subjects
Tamilnadu Stateboard Standards
