1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
The internal resistance of a 2.1 V cell which gives a current of 0.2 A through a resistance of 10 $$\Omega $$ is
A
0.8 $$\Omega $$
B
1.0 $$\Omega $$
C
0.2 $$\Omega $$
D
0.5 $$\Omega $$
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
A wire of resistance 4 $$\Omega $$ is stretched to twice its original length. The resistance of stretched wire would be
A
8 $$\Omega $$
B
16 $$\Omega $$
C
2 $$\Omega $$
D
4 $$\Omega $$
3
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
The power dissipated in the circuit shown in the figure is 30 watts. The value of R is
AIPMT 2012 Mains Physics - Current Electricity Question 82 English
A
20 $$\Omega $$
B
15 $$\Omega $$
C
10 $$\Omega $$
D
30 $$\Omega $$
4
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
A cell having an emf $$\varepsilon $$ and internal resistance r is connected across a variable external resistance R. As the resistance R is increased, the plot of potential difference V across R is given by
A
AIPMT 2012 Mains Physics - Current Electricity Question 83 English Option 1
B
AIPMT 2012 Mains Physics - Current Electricity Question 83 English Option 2
C
AIPMT 2012 Mains Physics - Current Electricity Question 83 English Option 3
D
AIPMT 2012 Mains Physics - Current Electricity Question 83 English Option 4
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