Advertisements
Advertisements
Question
Solution
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
RELATED QUESTIONS
The work done in moving a unit charge across two points in an electric circuit is a measure of:
(a) current
(b) potential difference
(c) resistance
(d) power
How many microamperes are there in 1 ampere?
Which unit could be used to measure current?
(a) Watt
(b) Coulomb
(c) Volt
(d) Ampere
If a charge of 420 C flows through a conducting wire in 5 minutes what is the value of the current?
Tick(✓) the correct choice in the following:
When the length of a conductor is doubled the resistance of the conductor
will
What is the criteria for selecting a fuse wire?
Complete the following:
1 kWh = _________ J
Three heaters each rated 250 W, 100 V are connected in parallel to a 100 V supply. The resistance of each heater
Kilowatt hour is the unit of
