1
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
2
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
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Specific resistance of a conductor increases with
A
increase in temperature
B
increase in cross-section area
C
increase in cross-section and decrease in length
D
decrease in cross secton area.
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
For a cell terminal potential difference is 2.2V when circuit is open and reduce to 1.8 V when cell is connected to a resistance of R = 5 $$\Omega $$. Determine internal resistance of cell (r)
A
$${{10} \over 9}\Omega $$
B
$${{9} \over 10}\Omega $$
C
$${{11} \over 9}\Omega $$
D
$${{5} \over 9}\Omega $$
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