Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
Given, P = 1.5 kW= 1500 W, p.d. = 220 V
We know that,
P=VI
I = `"P"/"V" = 1500/220` = 6.8 A
Thus a fuse of rating 7A may be used with the appliance and it should be connected in the live wire before connectimg it to the appliance.
APPEARS IN
संबंधित प्रश्न
Choose the correct alternative and rewrite the following sentence.
When the resistance of a conductor increases, the current will ________ increase.
Fill in the folloing blank with suitable words:
A current is a flow of ............... .For this to happen there must be a ............... circuit.
Which type of circuit, series or parallel, is preferred while connecting a large number of bulbs:
(a) for decorating a hotel building from outside?
Ten bulbs are connected in a series circuit to a power supply line. Ten identical bulbs are connected in a parallel circuit to an identical power supply line.
(b) In which circuit, if one bulbs be brighter?
Draw a circuit diagram showing two electric lamps connected in parallel together with a cell and a switch that works both lamps. Mark an â’¶ on your diagram to show where an ammeter should be placed to measure the current.
Fill in the blank :
1 mA = ............................. A.
Coulomb is the SI unit of ____________.
The flow of electric charge per unit time is called potential difference.
