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प्रश्न
What would be the danger involved in replacing a blown fuse with the one which would carry a large current?
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उत्तर
Replacing a fuse with another fuse of higher rating wou Id al low a large current to flow through the circuit or applia nee to which the fuse is connected and thus, there is a chance of short-circuiting and the appliance may get damaged.
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संबंधित प्रश्न
Which unit could be used to measure current?
(a) Watt
(b) Coulomb
(c) Volt
(d) Ampere
Two lamps, one rated 40 W at 220 V and the other 60 W at 220 V, are connected in parallel to the electric supply at 220 V.
(a) Draw a circuit diagram to show the connections.
(b) Calculate the current drawn from the electric supply.
(c) Calculate the total energy consumed by the two lamps together when they operate for one hour.
Two cells each having an e.m.f. of 2 V and an internal resistance of 2Ω are
connected (a) In series, and ( b) In para 1le l as shown in fig. . What is the
current flowing through the cir cu it in each_ case?
State whether the current is a scalar or vector?
My mother was operating washing machine on Sunday morning. Suddenly, she saw a spark coming out of the electric board and the electric current in the house failed. An electrician was called to look into the matter. What should he have noticed.
Problems for practice:
If 3A current flows through a circuit, then convert the current in terms of a milliampere.
Electric current passes through a metallic conductor due to the movement of ______.
The number of electrons constituting a 1-coulomb charge is ______.
What is the SI unit for the current?
