1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
A wire of resistance 12 ohms per meter is bent to form a complete circle of radius 10 cm. The resistance between its two diametrically opposite points, A and B as shown in the figure is

AIPMT 2009 Physics - Current Electricity Question 75 English
A
$$3\,\Omega $$
B
$$6\pi \,\Omega $$
C
$$6\,\Omega $$
D
$$0.6\pi \,\Omega $$
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
See the electrical circuit shown in this figure. Which of the following equations is a correct equation for it ?

AIPMT 2009 Physics - Current Electricity Question 76 English
A
$${\varepsilon _2} - {i_2}{r_2} - {\varepsilon _1} - {i_1}{r_1} = 0$$
B
$$ - {\varepsilon _2} - \left( {{i_1} + {i_2}} \right)R + {i_2}{r_2} = 0$$
C
$${\varepsilon _1} - \left( {{i_1} + {i_2}} \right)R + {i_1}{r_1} = 0$$
D
$${\varepsilon _1} - \left( {{i_1} + {i_2}} \right)R - {i_1}{r_1} = 0$$
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
AIPMT 2008 Physics - Current Electricity Question 72 English
In the circuit shown, the current through the 4 $$\Omega $$ resistor is 1 amp when the points P and M are connected to a d.c. voltage source. The potential difference betwen the points M and N is
A
0.5 volt
B
3.2 volt
C
1.5 volt
D
1.0 volt
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
A wire of a certain material is stretched slowly by ten percent. Its new resistance and specific resistance become respectively
A
both remain the same
B
1.1 times, 1.1 times
C
1.2 times, 1.1 times
D
1.21 times, same
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