Advertisements
Advertisements
Question
Tick(✓) the correct choice in the following:
The outer casing of an electric iron is generally connected to earth in order
to
Options
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.
Solution
Protect the user from electric shock by short circuiting and consequently
breaking the circuit.
APPEARS IN
RELATED QUESTIONS
The p.d. across a 3 Ω resistor is 6 V. The current flowing in the resistor will be:
(a) `1/2A`
(b) 1 A
(c) 2 A
(d) 6 A
Draw a circuit diagram to show how two 4 V electric lamps can be lit brightly from two 2 V cells.
What is the criteria for selecting a fuse wire?
Define the term kilowatt - hour and state its value in S.I. unit.
An electric bulb is marked '100 W, 250 V'. What information does this convey?
Calculate the current through a 60 W lamp rated 250 V. If the line voltage falls to 200 V, how is power consumed by the bulb affected?