1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Two cells, having the same e.m.f. are connected in series through an external resistance R. Cells have internal resistances r1 and r2 (r1 > r2) respectively. When the circuit is closed, the potential difference across the first cell is zero. The value of R is
A
r1 + r2
B
r1 $$-$$ r2
C
$${{{r_1} + {r_2}} \over 2}$$
D
$${{{r_1} - {r_2}} \over 2}$$
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulting handle. As a result the potential difference between the plates
A
increases
B
decreases
C
does not charge
D
becomes zero
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Power dissipated across the 8 $$\Omega $$ resistor in the circuit shown here is 2 watt. The power dissipated in watt units across the 3 $$\Omega $$ resistor is

AIPMT 2006 Physics - Current Electricity Question 71 English
A
3.0
B
2.0
C
1.0
D
0.5
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
A square surface of side L metres is in the plane of the paper. A uniform electric field $$\overrightarrow E $$ (volt/m), also in the plane of the paper is limited only to the lower half of the square surface (see figure). The electric flux in SI inits associated with the surface is

AIPMT 2006 Physics - Electrostatics Question 44 English
A
EL2
B
EL2/2$$\varepsilon $$0
C
EL2/2
D
zero