1
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
Consider the circuit shown in the figure.

WB JEE 2017 Physics - Current Electricity Question 25 English
The value of the resistance X for which the thermal power generated in it is practically independent of small variation of its resistance is
A
X = R
B
X = $${R \over 3}$$
C
X = $${R \over 2}$$
D
X = 2R
2
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
WB JEE 2017 Physics - Current Electricity Question 24 English
Consider the circuit shown in the figure where all the resistances are of magnitude 1 k$$\Omega$$. If the current in the extreme right resistance X is 1 mA, the potential difference between A and B is
A
34 V
B
21 V
C
68 V
D
55 V
3
WB JEE 2017
MCQ (Single Correct Answer)
+2
-0.5
Change Language
Consider the circuit given here. The potential difference VBC between the points B and C is

WB JEE 2017 Physics - Current Electricity Question 21 English
A
1 V
B
0.5 V
C
0 V
D
$$-$$ 1 V
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