PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo
1. State Ohm’s law.
 
Ohm's law states that at a , the  flowing through a conductor is directly proportional to the  between the two ends of the conductor.
 
Mathematically, it is written as .
 
2. Name any two appliances which work under the principle of heating effect of current.
 
Some of the electrical appliances contains heating element in it. They are  and .
 
3. How are the home appliances connected in general, in series or parallel. Give reasons.
 
Generally, the home appliances or electrical wiring in houses are made of circuits.
 
In series connection, the current throughout the series circuit. If the circuit is broken or disturbed at any point in the loop, the through the circuit, and hence electric appliances linked to it .
 
The potential difference across separate parallel branches are the . Even if the circuit is broken at any point in the loop, the  through the circuit.
 
In this case, any electric appliances linked to the circuit .
 
4. List the safety features while handling electricity.
 
Do not make contact with the .
 
While handling electricity, wear and stand on an .
 
Electricians wear to avoid electric shock while repairing electric switches. They also use screwdrivers and testers made of .
  
Keep away from the area where the electricity is used, as this might lead to electric current leakage.