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प्रश्न
What are free electrons?
एक पंक्ति में उत्तर
उत्तर
The electrons of the outermost orbit of an atom are the free electrons and they easily leave their respective atoms and become free to move inside the solid.
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Types of Circuits: Simple Circuit
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संबंधित प्रश्न
Write symbol and state function of following component in an electric circuit :
cell
(a) Complete the circuit given in Fig. by inserting between the terminals A and C. an ammeter.
(b) In the diagram, mark the polarity at the terminals of ammeter and indicate clearly the direction of flow of current in the circuit when the circuit is complete.
(c) Name and state the purpose of Rh in the circuit.
Calculate the total number of electrons flowing through a circuit in 20 mins and 40 s, if a current of 40 μA flows through the circuit.
[1 e– = 1.6 × 10-19 C]
Name a physical quantity, other than an electric charge, which is quantized.
Is a charge of -3.6 X 10-18C possible?
What is the purpose of an electroscope?
Write SI unit of
Resistance.
The lighting and the thunder are produced simultaneously, but the sound of the thunder is heard a few seconds after the lightning is seen. Why?
Is electric current a scalar quantity?
'The resistance of a wire is 2 ohm'. Explain the meaning of this statement.
