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:
