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प्रश्न
Select the correct option:
In a metallic conductor, electric current is thought to be due to movement of:
विकल्प
ions
amperes
electrons
protons
उत्तर
electrons
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संबंधित प्रश्न
What is the function of a key (or switch) in an electric circuit?
(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.
What do you understand by the term resistance?
The unit of potential difference is :
What do you understand by the term electric potential?
Assuming that the charges of an electron is 1.6 × 10-19 coulombs, the number of electrons passing through a section of wire per sec, when the wire carries a current of one ampere is:
State the factors on which the electrical resistance of a wire depends.
What is the physical meaning of resistance?
