Advertisements
Advertisements
Question
Advertisements
Solution
Given power P = 3k W = 3000 W, Voltage = 250 V
We know that, P =VI
`"I" = "P"/"V" = 3000/250 = 12 "A"`
Thus am aximum of 12 A current can pass through the electric wire
and a fuse of rating 13 A should be used with it
APPEARS IN
RELATED QUESTIONS
Choose the correct alternative and rewrite the following sentence.
When the resistance of a conductor increases, the current will ________ increase.
The rating of a fuse connected in the lighting circuit is:
(a) 15 A (b) 5 A (c) 10 A (d) Zero
Find the effective resistance in the following circuit diagrams (Fig.):

Tick (✓) the correct choice among the following :
Which of the following changes would enable a millimeter to be used as a
direct current ammeter reading upto 1 A?
State whether the current is a scalar or vector?
A current of 0.2 A flows through a wire whose ends are at a potential difference of 15 V. Calculate:
(i) The resistance of the wire, and
(ii) The heat energy produced in 1 minute.
State the condition when it is advantageous to connect cells in series.
State the condition when it is advantageous to connect cells in parallel.
