Question 1 :
Why is electrical wiring usually covered with a layer of plastic?
Question 2 :
Some materials have electrons that are tightly bound to the nucleus and are not free to travel within the substance. These materials are called .............
Question 4 :
If current flowing through the LED in the circuit is need to be controlled, what from the following can be connectedto the circuit?
Question 8 :
Bulb does not glow when the probs are hanged in air. The reason is:
Question 10 :
State whether true or false.<br/>Pure water is a good conductor of electricity.<br/>
Question 12 :
What type of energy transformation occurs in a dry cell ?
Question 14 :
State whether true or false:<br/>Alcohol and ether are conducting liquids of electricity. <br/>
Question 16 :
Device which helps in maintaining a potential difference across a conductor is
Question 17 :
Conventional current is the direction of electric current from positive terminal of a cell to negative terminal.
Question 18 :
A potato can be used to find the polarityof a cell
Question 19 :
Identify the conductors from the following: <br/>Eraser, paper, matchstick, copper wire, polythene.<br/>
Question 20 :
State whether the given statement is True or False :Conductors when charged transfer all charges to the entire surface of the conductor. 
Question 21 :
What happens when negative terminal of cell is connected to other negative terminal of cell in a particular circuit?
Question 22 :
A constant potential difference is maintained between the ends of a conductor having non-uniform cross-section. Which of the following quantities will not change along the length of the conductor?
Question 24 :
State whether true or false.<br/>Metals as compared to non-metals are generally bad conductors of electricity.<br/>
Question 26 :
Which of followingcomponents are not compulsorily required in an electrical circuit?
Question 29 :
Birds do not feel electric shock while sitting on current carrying uninsulated wires because ............. .
Question 30 :
Materials which allow larger currents to flow through them are called :
Question 33 :
The mud houses are cooler in summer and warmer in winter. It happen due to the reason that.
Question 34 :
State True or False :Human body is a good conductor of electricity.
Question 36 :
The energy stored in the dry cell is in the form of .......... .
Question 42 :
Electrical charge can be transferred from a charged object to another through
Question 44 :
Generally, cathodes and anodes used in a simple voltaic cell are
Question 45 :
Which pair is not correct for the instrument used in the laboratory and their uses from the following?
Question 47 :
What is the minimum number of cells require to make a battery?