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प्रश्न
Tick(✓) the correct choice in the following:
The outer casing of an electric iron is generally connected to earth in order
to
विकल्प
Protect the user from electric shock by short circuiting and consequently
breaking the circuit.Prevent the fuse from burning out.
Protect the iron.
Complete the electrical circuit to the iron.
Allow the current to get away.
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उत्तर
Protect the user from electric shock by short circuiting and consequently
breaking the circuit.
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संबंधित प्रश्न
In which direction do electrons flow?
How many milliamperes as there in 1 ampere?
The lamps in a house hold circuit are connected in parallel because:
(a) this way they required less current
(b) if one lamp fails the others remain lit
(c) this way they require less power
(d) if one lamp fails the other also fail
A wire of length 5 m has a resistance of 2.0 Ω calculate:
(a) the resistance of wire of length 1 m
(b) the equivalent resistance if two such wires each of length 2 m are joined in parallel.
(c) the resistance of 1 m length of wire of same material but of half diameter.
Tick(✓) the correct choice in the following:
24 watt, 12 volt head lamp is fully lit by connecting it to a 12 volt
battery. The working resistance of the lamp is
Find the effective resistance in the following circuit diagrams (Fig.):
Calculate the current in a wire if a charge of 1500 coulomb flows through it in 5 minutes.
