Question 1 :
Where the main fuse in a house circuit is connected ?
Question 3 :
Mark the correctstatement about the material to be used in fuse wire.
Question 5 :
On Diwali Mr.Antriksh wants to light his housewith a number of $10 W (220 V)$ bulbs in parallel.If the house circuit has a fuse of $5 A$ then whatis the maximum number of such bulbs he canuse if he is not using any other electricalappliance in the circuit.
Question 6 :
Shivam went for buying a CFL from D-mart, what safety mark he should look for?
Question 10 :
Which of the following can be used to lift giant industrial machines?
Question 13 :
Fuse wire should be placed in the path of _______ wire.<br>
Question 15 :
A fuse is a short piece of wire of .............. and ................?<br/>
Question 16 :
The cable of an electric fan becomes so worn that the live wire makes electrical contact with the metal case The case is earthed The plug to the fan contains a 5 A fuse There is a current of 4 A when the fan works normally What will happen in this case?
Question 23 :
$\text{Assertion(A)} :$ However long a fuse wire may be,the safe current that can be allowed is the same.<br/>$\text{Reason (R)} :$ The safe current that can be allowed to pass through a fuse wire depends on the radius of the wire.<br/>
Question 25 :
What we used to protect the electric circuits from over loading and short circuit ?
Question 27 :
Two fuse wires of the same length are rated 5 A and 20 A.Which of the fuse wires is thicker and why ?
Question 28 :
A 5 amp fuse wire can withstand a maximum power of 1 W in circuit. The resistance of the fuse wire is
Question 29 :
Complete the following sentences : A fuse is a short piece of wire of high .......... and of material of low ..........
Question 30 :
Why the applications of permanent magnet in the field ofengineering are quite limited?
Question 31 :
An electric bulb rated 220 V - 100 W will fuse if it consumes 131 W. What voltage fluctuations can it withstand?<br/>
Question 34 :
A fuse wire with a radius of $0.1 mm$ blows up at $5 A$. The radius of another fuse wire made of the same material which will blow up at $40 A$ is _____.
