1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
when three identical bulbs of 60 watt, 200 volt rating are connected in series to a 200 volt supply, the power drawn by them will be
A
60 watt
B
180 watt
C
10 watt
D
20 watt
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Fuse wire is a wire of
A
high resistance and high melting point
B
high resistance and low melting point
C
low resistance and low melting point
D
low resistance and high melting point
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
An electric kettle has two heating coils. When one of the coils is connected to an a.c. source, the water in the kettle boils in 10 minutes. When the other coil is used the water boils in 40 minutes. If both the coils are connected in parallel, the time taken by the same quantity of water to boil will be
A
8 minutes
B
4 minutes
C
25 minutes
D
15 minutes
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Two 220 volt, 100 watt bulbs are connected first in series and then in parallel. Each time the combination is connected to a 220 volt a.c. supply line. The power drawn by the combination in each case respectively will be
A
50 watt, 100 watt
B
100 watt, 50 watt
C
200 watt, 150 watt
D
50 watt, 200 watt

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