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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
Draw the electrical symbols of the following components and state its use
Wire crossing
Which particles constitute the electric current in a metallic conductor?
What is the conventional direction of the flow of electric current? How does it differ from the direction of flow electrons?
An electric bulb is rated as 10 W, 220 V. How many of these bulbs can be connected in parallel across the two wires of 220 V supply line if the maximum current which can be drawn is 5 A?
Define the term resistivity.
In the network shown in the following adjacent Figure, calculate the equivalent resistance between the points.
- A and B
- A and C
The diagram shows two ways of connecting three lamps P, Q and R to A.C. supply of 220 V.
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.
The flow of electric charge per unit time is called potential difference.
