1
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
A 12 cm wire is given a shape of a right angled triangle ABC having sides 3 cm, 4 cm and 5 cm as shown in the figure. The resistance between two ends (AB, BC, CA) of the respective sides are measuread one by one ratio
2
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Two rods are joined end to end, as shown. Both have a cross-sectional area of 0.01 cm2. Each is 1 meter long. One rod is of copper with a resistivity of 1.7 $$ \times $$ 10$$-$$6 ohm-centimeter, the other is of iron with a resistivity of 10$$-$$5 ohm-centimeter.
How much voltage is required to produce a current of 1 ampere in the rods?
How much voltage is required to produce a current of 1 ampere in the rods?
3
NEET 2013
MCQ (Single Correct Answer)
+4
-1
A wire of resistance 4 $$\Omega $$ is stretched to twice its original length. The resistance of stretched wire would be
4
NEET 2013
MCQ (Single Correct Answer)
+4
-1
The internal resistance of a 2.1 V cell which gives a current of 0.2 A through a resistance of 10 $$\Omega $$ is
Questions Asked from Current Electricity (MCQ (Single Correct Answer))
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