1
AIPMT 2004
+4
-1
Five equal resistances each of resistances R are connected as shown in the figure. A battery of V volts is connected between A and B. The current flowing in AFCEB will be

A
$${{3V} \over R}$$
B
$${V \over R}$$
C
$${V \over {2R}}$$
D
$${{2V} \over R}$$
2
AIPMT 2004
+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
3
AIPMT 2004
+4
-1
The electric resistance of a certain wire of iron is R. If its length and radius are both doubled, then
A
The resistance will be doubled and the specific resistance will be halved.
B
The resistance will be halved and the specific resistance will remain unchanged.
C
The resistance will be halved and the specific resistance will be doubled.
D
The resistance and the specific resistance, will both remain unchanged.
4
AIPMT 2004
+4
-1
In India electricity is supplied for domestic use at 220 V. It is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in India is R, the resistance of a 60 W bulb for use in USA will be
A
R
B
2R
C
R/4
D
R/2
EXAM MAP
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