1
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.25
Change Language
Four resistors, 100$$\Omega $$, 200$$\Omega $$, 300$$\Omega $$ and 400$$\Omega $$ are connected to form four sides of a square. The resistors can be connected in any order. What is the maximum possible equivalent resistance across the diagonal of the square?
A
210$$\Omega $$
B
240$$\Omega $$
C
300$$\Omega $$
D
250$$\Omega $$
2
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.25
Change Language
What will be current through the 200$$\Omega $$ resistor in the given circuit, a long time after the switch K is made on?

WB JEE 2018 Physics - Current Electricity Question 23 English
A
Zero
B
100 mA
C
10 mA
D
1 mA
3
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.25
Change Language
An electric bulb, a capacitor, a battery and a switch are all in series in a circuit. How does the intensity of light vary when the switch is turn on?
A
continues to increase gradually
B
gradually increases for sometime and then becomes steady
C
sharply rises initially and then gradually decreases
D
gradually increases for sometime and then gradually decreaes.
4
WB JEE 2018
MCQ (Single Correct Answer)
+2
-0.5
Change Language
The insulated plates of a charged parallel plate capacitor (with small separation between the plates) are approaching each other due to electrostatic attraction. Assuming no other force to be operative and no radiation taking place, which of the following graphs approximately shows the variation with time (t) of the potential difference (V) between the plates?
A
WB JEE 2018 Physics - Current Electricity Question 20 English Option 1
B
WB JEE 2018 Physics - Current Electricity Question 20 English Option 2
C
WB JEE 2018 Physics - Current Electricity Question 20 English Option 3
D
WB JEE 2018 Physics - Current Electricity Question 20 English Option 4
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