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प्रश्न
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उत्तर
The direction of conventional current is taken as the direction of flow of positive charges.
The direction of electronic current is taken as opposite to the direction of motion of electrons.
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संबंधित प्रश्न
Calculate the number of electrons constituting one coulomb of charge.
The work done in moving a unit charge across two points in an electric circuit is a measure of:
(a) current
(b) potential difference
(c) resistance
(d) power
What actually travels through the wires when you switch on a light?
How do you think the brightness of two lamps arranged in parallel compares with the brightness of two lamps arranged in series (both arrangements having one cell)?
Tick(✓) the correct choice in the following:
Which of the following quantities has the same value for all electrical
appliances connected to the ring main circuit in a house?
An auto lamp is joined to a battery of e.m.f. 4 V and internal resistance 2.5Ω. A steady current of 0.5 A flows through the circuit. Calculate the
(a) Total energy provided by battery in 10 minutes,
(b) Heat dissipated in the bulb in 10 minutes.
Small amounts of electrical current are measured in milliampere (mA). How many milliampere are there in 0.25 A ?
