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प्रश्न
उत्तर
It means that if the bulb is lighted on a 200V supply it consumes 60W electrical power or 200J of electrical energy converts into heat and light in 1 second.
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संबंधित प्रश्न
Calculate the number of electrons constituting one coulomb of charge.
The atoms of copper contain electrons and the atoms of rubber also contain electrons. Then why does copper conduct electricity but rubber does not conduct electricity?
By what name is the physical quantity coulomb/second called?
A 5 V battery is connected to two 20 Ω resistors which are joined together in series.
(a) Draw a circuit diagram to represent this. Add an arrow to indicate the direction of conventional current flow in the circuit.
(b) What is the effective resistance of the two resistors?
(c) Calculate the current that flows from the battery?
(d) What is the p.d. across each resistor?
Define the term resistivity and state its S.I unit.
How is direction of current related to the direction of flow of electrons?
How should the electric lamps in a building be connected?
Small amounts of electrical current are measured in milliampere (mA). How many milliampere are there in 0.25 A ?
In current electricity, a positive charge refers to ______.
