In the circuit shown, assuming the threshold voltage of the diode is negligibly small, then the voltage is correctly represented by:
1
2
3
would be zero at all times
4
Official Solution
Correct Option:
(2)
The given circuit consists of a diode and a resistor.
The input voltage is given as .
Due to the nature of the diode, the output waveform is a full-wave rectified signal.
Output: Only positive half-cycles remain
02
PYQ 2026
medium
physicsID: jee-main
Three identical liquid drops, each carrying the same charge, coalesce to form a single drop. The ratio of the potential of the large drop and the smaller drop is . Then, is:
1
A
2
B
3
C
4
D
Official Solution
Correct Option:
(2)
Step 1: Understand the relation for potential. The potential of a spherical drop is given by the formula: where is the radius and is the charge. The total charge is the same for all drops. Step 2: Calculate the potential. When the drops coalesce, their volume adds up, so the radius of the large drop becomes . The potential is proportional to the radius of the drop. Therefore, the ratio of the potentials is , and . Final Answer:
About Simple Diode Circuits - JEE-MAIN
Simple Diode Circuits is a vital chapter for JEE-MAIN aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
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