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प्रश्न
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उत्तर
Precautions while using electricity:
(i) One must use wires or cables of current carrying capacity higher than the current which can flow through the circuit while using all appliances.
(ii) An electrical appliance must never be operated (or touched) with wet hands.
संबंधित प्रश्न
If 20 C of charge pass a point in a circuit in 1 s, what current is flowing?
What is international convention of colour coding in a cable?
Define the following:
Semiconductors
Define the following:
Super conductors
Find the effective resistance in the following circuit diagrams (Fig.):
What is the purpose of a fuse in an electrical circuit?
What would be the danger involved in replacing a blown fuse with the one which would carry a large current?
A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:
The energy dissipated in the bulb in 10 minutes.
